How To Use Columella In A Sentence
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The development of the sporogonium proceeds as in the Bryales, but the dome-shaped archesporium extends over the summit of the columella and an air-space is wanting.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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The primary, stout capillitial branches arise from the upper part of the columella, dichotomously branching into flexuose threads.
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It appears to be cut from a large bivalve and does not have the twisted shape of a whelk or conch columella.
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-- N.S. (Fig. 141.) Shell fusiform, contracted above the body-whirl, and forming thereby a sub-cylindrical spire; spire obtuse apex papillated and hooked; body-whirl plaited longitudinally at its top; columellar lip furnished with only two plaits.
Report of the North-Carolina Geological Survey. Agriculture of the Eastern Counties: Together with Descriptions of the Fossils of the Marl Beds
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Sound is conducted through the middle ear via the stapes or columella (both are ear ossicles derived from the hyomandibular).
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The superior labial artery originates form the columellar artery, which courses up the columella to the region between the domes.
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Vertical bars in (L and M) indicate enlarged region shown in (P and Q). pd, protoderm; pc, procambium; col, columella initials; QC, quiescent center; v, vascular tissue; ep, epidermis; c, cortex; en, endodermis.
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This membrane is somewhat urn-shaped, and encloses a cavity in which are situated the pulverulent mass of spores arranged around a central columella of combined host and fungous tissue.
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The assumption commonly made is that vibrations in the water or air by direct contact cause the tympanic membrane to vibrate; this in turn causes a movement of the columella, which is transmitted to the perilymphatic fluid of the inner ear.
Harvard Psychological Studies, Volume 1 Containing Sixteen Experimental Investigations from the Harvard Psychological Laboratory.
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In all other Bryales there is a definite columella extending from the base to the apex of the capsule, the archesporium is derived from the outermost layer of cells of the endothecium, and an air space is formed between the spore-sac and the wall.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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The stapes has neither a columella nor a stapedial foramen.
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A rod-like columella auris replaces the chain of ear ossicles, and may, or may not, answer to the stapes alone, or even possibly to the entire series.
Text Book of Biology, Part 1: Vertebrata
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The spores are derived from the endothecium, but no distinction of a sterile columella and an archesporium is established in this, a variable number of its cells becoming spore-mother-cells while the rest serve to nourish the spores.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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Arrowheads in (B) indicate abnormal divisions in suspensor and columella initials; arrowhead in (C and D) marks abnormal division in protoderm.
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The drawing below, showing the branches of the columellar muscle of Helix pomatia, is from the last volume of Libbie Hyman's incomplete series The Invertebrates, published in 1967 shortly before she died.
Tangled innards of a snail or how we know the intelligent designer was a klutz
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In all other Bryales there is a definite columella extending from the base to the apex of the capsule, the archesporium is derived from the outermost layer of cells of the endothecium, and an air space is formed between the spore-sac and the wall.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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In all cases (except _Archidium_) a columella is present, and all the cells derived from the archesporium produce spores, no elaters being formed.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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Most tip plasty and nasal width reduction surgery do not have external scars except for the columellar in an open rhinoplasty approach, and tiny skin puncture marks for external osteotomies (bone breaking to narrow nose).
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The petala are very tender, 5 in number, scarce so large as the calix: in the middle stands a columella thick set with thrummy apiculae, which argue this plant to belong to the Malvaceous kind.
A Voyage to New Holland
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Somehow, it survived, reattached its columellar muscle and continued to grow, building its own shell.
Archive 2006-03-01
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Vertical bars in (L and M) indicate enlarged region shown in (P and Q). pd, protoderm; pc, procambium; col, columella initials; QC, quiescent center; v, vascular tissue; ep, epidermis; c, cortex; en, endodermis.
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A fine, solid, brown species, generally more or less eroded, and with a peculiarly strongly plicate columella.
The Journals of John McDouall Stuart
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A reduced hyomandibula associated with the quadrate in a fish's visceral skull evolved to form the ear ossicle called the stapes, or columella.
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The spherical pericarp of the bertholletia, perforated at the summit, is not dehiscent; the upper and swelled part of the columella forms (according to M. Kunth) a sort of inner cover, as in the fruit of the lecythis, but it seldom opens of itself.
Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2
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These structures, along with the columella and apophysis are present in the asexual state.
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Quoting from Hyman [italics mine]:In [Helix pomatia] the [columellar] muscle, after leaving its origin on the columella, forks into right and left parts, of which the smaller right part sends a branch into each tentacle on that side and then loses itself in the tissues of the foot.
Archive 2008-08-01
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The first periclinal divisions in the cells of the terminal tier separate a central group of cells which form the sterile columella (col).
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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Dodonaea microzyga, F.M. Somewhat viscid, almost glabrous; leaves with 1 to 2 pairs of small obovate-cuneate leaflets; in front rounded, or truncate, or retuse, or sometimes 3-toothed, flat at the margin; rachis dilated; fruit-bearing pedicels solitary; capsules 3 to 4-celled; valves cymbeo-semiorbicular, all around broadly winged; the wing rounded-blunt on both extremities; dissepiments persistent with the columella.
The Journals of John McDouall Stuart
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The columellar location of the gastropod retractor muscle is thought to be an effect of torsion.
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Columella was a Roman soldier and farmer who wrote extensively on agriculture and similar subjects, hoping to foster in people a love for farming and a liking for the simple life.
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[332] The same author says elsewhere, "Columella, Cato, Vitruvius, and Pliny, all had their notions of the advantages of cutting timber at certain ages of the moon; a piece of mummery which is still preserved in the royal ordonnances of France to the conservators of the forests, who are directed to fell oaks only 'in the wane of the moon' and 'when the wind is at north.'
Moon Lore
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There is a central support, called a columella, that runs right through the middle of the shell which gives it strength and provides a point of attachment for the soft parts of the animal.
Mollusca
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The outer pollen wall ultrastructure of 4 excellent germplasms and their cutting offsprings showed that the tectum , columellac, foot layer and endexine had no notable variation.
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Anthocerotales are a small and very distinct group, in which the gametophyte is a thallus, while the sporogonium possesses a sterile columella and is capable of long-continued growth and spore production.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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Three beautiful specimens are assigned to this new species, which is characterized by step-like whorls, coarse and prominent collabral costae and spiral caring on the ramp, and a columellar lip with two folds.
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The shell is cylindrical, dense and heavy; the spire is short, with channelled sutures, and the aperture long and narrow; the anterior part is notched; the columella is callous and striated obliquely.
Report of the North-Carolina Geological Survey. Agriculture of the Eastern Counties: Together with Descriptions of the Fossils of the Marl Beds
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And according to Columella, the Horehound is a serviceable remedy against the Cankerworm in trees: _Profuit et plantis latices infundere amaros marrubii_.
Herbal Simples Approved for Modern Uses of Cure
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Higher values mean tube of the shell forms further from the coiling axis, resulting in a wider columella or hollow center
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The stapes has neither a columella nor a stapedial foramen.
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A. testa ovata; spira mediocri, tenui, semipellucida, vinosa; anfractu ultimo magno, ventricoso, postice ad suturas gibboso; apertura ovata; labio callo tenui mediocri obtecto, columella spiraliter tortuosa; labro convexo, margine acuto.
The Journals of John McDouall Stuart
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Arrowheads in (B) indicate abnormal divisions in suspensor and columella initials; arrowhead in (C and D) marks abnormal division in protoderm.
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You must know, my lady, dis precious mixture was de great secret - de arcanum mirificabile - of dat wonderful Arabian physician Hamech, which Paracelsus went mad wid cudgelling his prains to find out; and Avicenna and Galen and Trismegistus and Moderatus Columella all proke down in deir search to discover de meaning of de learned worts in which Hamech wrote de signification.
Rob of the bowl : a legend of St. Inigoe's,
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[Tracing the development of the columella was a long business, but it grew clearer as young frogs of various ages were examined.] "Don't be aggravated with yourself," [he writes to Parker in July,] "it's tough work, this here Frog.
Life and Letters of Thomas Henry Huxley — Volume 2
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Snails can do that without any trouble because their bodies are attached to their shells by only one muscle, the columellar, that twists around the axis of coiling, the columella.
Archive 2006-02-01
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a small hole closed by the upper extremity of the columella, nature has not furnished monkeys with the means of opening the ligneous pericarp, as it has of opening the covercle of the lecythis, called in the missions the covercle of the monkeys 'cocoa.
Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2
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The attachment site of the large Crepidula on the ventral side of the host shell and the presence of algal or sponge borings through the columella of the host indicate that the Oliva shell was possibly occupied by a hermit crab.
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From the triangular stage and onward, abnormal divisions of the suspensor, QC and columella cells were detected.
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The lower tiers [v. 04 p. 0652] form the foot, while in the upper part the first divisions mark off the columella, around which the archesporium, derived from the amphithecium, extends.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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Sound is conducted through the middle ear via the stapes or columella (both are ear ossicles derived from the hyomandibular).
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It differs from the Austrian species by having weaker columellar folds.
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-- (Fig. 159.) Shell subulate, sinistral, thick, costate, sutures small; whirls, ten, flat; ribs three, moniliform; columella smooth; canal short and deep.
Report of the North-Carolina Geological Survey. Agriculture of the Eastern Counties: Together with Descriptions of the Fossils of the Marl Beds
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By sheet valuation is aimed at stair of high-grade fact wood more, press stair namely all component quote, include general column, large post, columella , baluster, armrest, footplate, expand screw.
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The archesporium arises by the next divisions in the outer layer of cells, and thus extends over the summit of the columella.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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Such a rod is called a columella; it goes all the way through the center of the shell.
CreationWiki - Recent changes [en]
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The central region extending between the apophysis and the operculum is composed of sterile tissue and forms the columella (c).
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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He has also shown that the initiation and development of the columellar plaits in Voluta, Mitra, and other gasteropod molluscs
Lamarck, the Founder of Evolution His Life and Work
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Dodonaea microzyga, F.M. Somewhat viscid, almost glabrous; leaves with 1 to 2 pairs of small obovate-cuneate leaflets; in front rounded, or truncate, or retuse, or sometimes 3-toothed, flat at the margin; rachis dilated; fruit-bearing pedicels solitary; capsules 3 to 4-celled; valves cymbeo-semiorbicular, all around broadly winged; the wing rounded-blunt on both extremities; dissepiments persistent with the columella.
The Journals of John McDouall Stuart
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L vt vimina, vt habeas vnde et cet A viere verbum faftum viefcere reftitui ex libris Columellae XII.
Scriptorvm rei rvsticae vetervm latinorvm tomvs primvs-[qvartvs]..
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Shell lenticular, thin, diaphanous, imperforate; carina acute and armed with minute spines; whirls six; spire nearly planular; aperture linear, being guarded by a long tooth on the columella; outer lip irregularly thick, angulated near the supe - rior termination ....,
Transactions of the American Philosophical Society
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The red arrow in the right-hand picture is pointing at the columellar tooth.
Ventridens suppressus
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The spores are derived from the endothecium, but no distinction of a sterile columella and an archesporium is established in this, a variable number of its cells becoming spore-mother-cells while the rest serve to nourish the spores.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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-- (Fig. 140.) "Shell fusiform, ventricose; whirls compressed above, spirally and transversely striated; striae wrinkled and coarse at base; spire short and sub-cancellated, papillated; aperture semi-lunar; outer lip acute, smooth within; columella lip very thin, decumbent, almost obsolete, semi-callous, not distinguishable from the body-whirl, but by outline and color.
Report of the North-Carolina Geological Survey. Agriculture of the Eastern Counties: Together with Descriptions of the Fossils of the Marl Beds
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In maize, endodermal cells are also involved in lateral root formation, giving rise to the newly formed epidermis and columella, while the remaining root-types are formed by the pericycle.
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Arrowhead in (J) indicates a normal periclinal division in a WT columella.
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During the maturation of the snail, the outer-basal tooth is resorbed; the adult snails retain only the columellar.
Ventridens suppressus
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Shell fusiform; base canaliculate; spire elevated; columella smooth and concave.
Transactions of the American Philosophical Society
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In some species, although the columella and archesporium arise in the usual way, both give rise to mingled spores and elaters, and no sterile columella is developed.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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The lower tiers [v. 04 p. 0652] form the foot, while in the upper part the first divisions mark off the columella, around which the archesporium, derived from the amphithecium, extends.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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In amphibians, the columella shares the oval window with a second bone, the operculum, which communicates by way of an opercular muscle with the pectoral girdle.
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For the same reason as that suggested by Calmet, Columella calls the mandrake _semihomo_:
Aphrodisiacs and Anti-aphrodisiacs: Three Essays on the Powers of Reproduction
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It is characterized by strong, rounded, axial ribs, fine spinelets at the intersection of axial ribs and sharp spiral cords, subsutural cord, strong simple spiral cords, and an apparently smooth, glazed columellar lip.
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On most specimens, the very thin columella in the median part of the shell is either broken or missing (probably resorbed).
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Precession was a new phaenomenon, and latins -mainly- viewed it with suspicion since it was not following "the tradition of the older calculations of Eudoxus and Meton" see Columella and Pliny elder.
Astrologers angered by stars
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Shell small, white, polished, porcellanous, elongated, whirls numerous, flat; outer lip sharp, but thickened within; pillar lip reflected over the columella.
Report of the North-Carolina Geological Survey. Agriculture of the Eastern Counties: Together with Descriptions of the Fossils of the Marl Beds
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Galen and Soranus called it nymphê because it is covered as a bride is veiled, while the old Latin name was _tentigo_, from its power of entering into erection, and _columella_, the little pillar, from its shape.
Studies in the Psychology of Sex, Volume 5 Erotic Symbolism; The Mechanism of Detumescence; The Psychic State in Pregnancy
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Dodonaea microzyga, F.M. Somewhat viscid, almost glabrous; leaves with 1 to 2 pairs of small obovate-cuneate leaflets; in front rounded, or truncate, or retuse, or sometimes 3-toothed, flat at the margin; rachis dilated; fruit-bearing pedicels solitary; capsules 3 to 4-celled; valves cymbeo-semiorbicular, all around broadly winged; the wing rounded-blunt on both extremities; dissepiments persistent with the columella.
The Journals of John McDouall Stuart
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C, Median longitudinal section of a capsule, with the seta gradually widening into the apophysis at its base; d, operculum; p, peristome; a, annulus; c, columella; s, archesporium; h, air-space between the spore-sac and the wall of the capsule.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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Dodonaea microzyga, F.M. Somewhat viscid, almost glabrous; leaves with 1 to 2 pairs of small obovate-cuneate leaflets; in front rounded, or truncate, or retuse, or sometimes 3-toothed, flat at the margin; rachis dilated; fruit-bearing pedicels solitary; capsules 3 to 4-celled; valves cymbeo-semiorbicular, all around broadly winged; the wing rounded-blunt on both extremities; dissepiments persistent with the columella.
The Journals of John McDouall Stuart
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The stapes has neither a columella nor a stapedial foramen.
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Sicco statu sporldochium ad instar columellae in centro cupulae assurgit, luteum, ex nigris sporidiis in super - ficie punctato-nigi-um.
Transactions of the American Philosophical Society
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Zigzag chevrons also occur within the axial columella, generally in two or three parallel rows that may be confined to particular growth bands, thus defining layers in columellar stereoplasm.
