chemical substance


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Noun1.chemical substance - material produced by or used in a reaction involving changes in atoms or moleculeschemical substance - material produced by or used in a reaction involving changes in atoms or molecules
explosive - a chemical substance that undergoes a rapid chemical change (with the production of gas) on being heated or struck
material, stuff - the tangible substance that goes into the makeup of a physical object; "coal is a hard black material"; "wheat is the stuff they use to make bread"
reactant - a chemical substance that is present at the start of a chemical reaction
Alar, daminozide - a chemical sprayed on fruit trees to regulate their growth so the entire crop can be harvested at one time
carrier - an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction
bacteriacide, bactericide - any chemical agent that destroys bacteria
carbon tetrahalide - compounds composed of 1 carbon and 4 halogen molecules
congener - a minor chemical constituent that gives a wine or liquor its distinctive character
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
soil conditioner - a chemical substance used to improve the structure of the soil and increase its porosity; "gypsum can be used as a soil conditioner"
fertiliser, fertilizer, plant food - any substance such as manure or a mixture of nitrates used to make soil more fertile
flux - a substance added to molten metals to bond with impurities that can then be readily removed
fumigant - a chemical substance used in fumigation
herbicide, weed killer, weedkiller - a chemical agent that destroys plants or inhibits their growth
intermediate - a substance formed during a chemical process before the desired product is obtained
fraction - a component of a mixture that has been separated by a fractional process
larvicide - a chemical used to kill larval pests
pesticide - a chemical used to kill pests (as rodents or insects)
phytochemical - a chemical substance obtained from plants that is biologically active but not nutritive
product - a chemical substance formed as a result of a chemical reaction; "a product of lime and nitric acid"
restrainer - a chemical that is added to a photographic developer in order to retard development and reduce the amount of fog on a film
stabilizer - a chemical that is added to a solution or mixture or suspension to maintain it in a stable or unchanging state
softener - a substance added to another to make it less hard
References in classic literature ?
Every chemical substance, every plant, every animal in its growth, teaches the unity of cause, the variety of appearance.
Chemical Abstracts Service (CAS) has registered the 100 millionth chemical substance in the CAS REGISTRY, in the 50th anniversary year of the world's largest database of unique chemical substances
Section 8(a) of TSCA authorizes EPA to promulgate rules that require each person (other than a small manufacturer or processor) who manufactures, processes, or proposes to manufacture or process a chemical substance to maintain such records and submit such reports as the EPA administrator may reasonably require.
According to Taiwan REACH, the scope applies to a chemical substance on its own, and in a mixture.
Lab test results showed that a chemical substance named phenothrin, which is used in manufacturing insecticides, had been mixed with the baby milk.
Summary: Military Prosecutor Judge Saqr Saqr pressed charges Wednesday against a policeman and six inmates, including five members of Fatah al-Islam, for allegedly attempting to smuggle a potentially dangerous chemical substance into Roumieh prison.
By allowing the evaluation and compilation of chemical substance information consisting of data from legacy and newer formats, the upgraded COINServ-COSMOS-R/R streamlines workflows related to compiling and managing chemical substance information.
Specifically, the proposed rule changes the definitions of manufacturer use and commercial use to include EPA's interpretation that recycled byproducts must be reported under IUR; requires manufacturers to report if the production volume of a chemical substance meets or exceeds the 25,000 1b.
The EPA announced 15 March 2010 it will now provide free online access to the Toxic Substances Control Act Chemical Substance Inventory, which provides data on thousands of industrial chemicals.
6 seconds, the CAS (Chemical Abstracts Service) REGISTRY logs a new entry that defines and describes a recently discovered chemical substance.
Sex-performance enhancing herbal drugs contain percentages of Sildenafil, a chemical substance used to treat erectile dysfunction and pulmonary arterial hypertension.
The Canadian Environmental Protection Act of 1999 requires every new chemical substance made in Canada or imported from other countries since 1994 be assessed against specific criteria.

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