substance volatile
81isoprenoid — /uy seuh pree noyd/, adj. Chem. pertaining to, derived from, or similar to isoprene. [1955 60; ISOPRENE + OID] * * * or terpene Class of organic compounds made up of two or more structural units derived from isoprene. Isoprene is a five carbon… …
82distillation — Volatilization of a liquid by heat and subsequent condensation of the vapor; a means of separating the volatile from the nonvolatile, or the more volatile from the less volatile, part of a liquid mixture. [L. de (di …
83coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …
84Bleach — For other uses, see Bleach (disambiguation). Commercial Clorox sodium hypochlorite bleach Bleach refers to a number of chemicals that remove color, whiten, or disinfect, often via oxidation. Common chemical bleaches include household chlorine… …
85essence — [ esɑ̃s ] n. f. • 1130; lat. philos. essentia I ♦ Philos. Ce qui constitue la nature d un être. 1 ♦ Philos. (opposé à accident) Fond de l être, nature intime des choses. ⇒ nature, substance. L essence des choses. L essence humaine. « Nous ne… …
86bituminous coal — a mineral coal that contains volatile hydrocarbons and tarry matter and burns with a yellow, smoky flame; soft coal. [1875 80] * * * or soft coal Most abundant form of coal. It is dark brown to black and has a relatively high heat value. Widely… …
87Data storage device — Many different consumer electronic devices can store data …
88separation and purification — ▪ chemistry Introduction in chemistry, separation of a substance into its components and the removal of impurities. There are a large number of important applications in fields such as medicine and manufacturing. General principles… …
89drug — drug1 /drug/, n., v., drugged, drugging. n. 1. Pharm. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well being. 2. (in federal law) a. any substance… …
90Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
