NOUN
- material produced by or used in a reaction involving changes in atoms or molecules
How To Use chemical substance In A Sentence
- A semiochemical is a chemical substance or mixture that carries a message. PhysOrg.com - latest science and technology news stories
- A chemical substance that destroys or inhibits the growth of fungi.
- The chemical substance melanin is the pigment which darkens skin color. LSD and the Third Eye
- Why would a chemical substance as seemingly innocuous as milk sugar cause a body misery?
- Most shoemakers work in big factories where conditions are usually unhealthy because of the noise and working with chemical substances such as glues, solvents and dressings.
- Thus, whereas it proved possible to attack certain diseases due to protozoa and spirochaetes by means of chemical substances, little success had been achieved with chemical preparations against infections due to true bacteria, namely cocci and bacilli. Physiology or Medicine 1939 - Presentation Speech
- Coz I still don't know what chemical substances are both present in papain and fabric softener which is responsible in softening the cloths. Archive 2006-10-01
- There are many chemical substances on retail shelves which would not form in prebiotic earth conditions. Attached to Strings
- Numerous other chemical substances have been used, alone and also in conjunction with one another, such as perchloride of iron, copperas, manganese, &c. Manures and the principles of manuring
- It is very probable that a comparative experimental study will prove the existence of a large number of elementary species, differing in many points; they will probably also show differences in the amount of the active chemical substances, especially of emetine, which is usually recorded as present in about 1\%, but which will undoubtedly be found in larger quantities in some, and in smaller quantities in other elementary species. Species and Varieties, Their Origin by Mutation
