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Coumarin :: Coumarin (n.) The concrete essence of the tonka bean, the fruit of Dipterix (formerly Coumarouna) odorata and consisting essentially of coumarin proper, which is a white crystalline substance, C9H6O2, of vanilla-like odor, regarded as an anhydride of coumaric acid, and used in flavoring. Coumarin in also made artificially..

Anhydride :: Anhydride (n.) An oxide of a nonmetallic body or an organic radical, capable of forming an acid by uniting with the elements of water; -- so called because it may be formed from an acid by the abstraction of water..

Lactam :: Lactam (n.) One of a series of anhydrides of an amido type, analogous to the lactones, as oxindol..

Valero- :: Valero- () A combining form (also used adjectively) indicating derivation from, or relation to, valerian or some of its products, as valeric acid; as in valerolactone, a colorless oily liquid produced as the anhydride of an hydroxy valeric acid..

Lactone :: Lactone (n.) One of a series of organic compounds, regarded as anhydrides of certain hydroxy acids. In general, they are colorless liquids, having a weak aromatic odor. They are so called because the typical lactone is derived from lactic acid..

Succinyl :: Succinuric (a.) Pertaining to, or designating, an acid amide, analogous to succinamic acid, which is obtained as a white crystalline substance by heating urea with succinic anhydride. It is known also in its salts..

Xeronic :: Xeronic (a.) Pertaining to, or designating, an acid, C8H12O4, related to fumaric acid, and obtained from citraconic acid as an oily substance having a bittersweet taste; -- so called from its tendency to form its anhydride..

Fluorescein :: Fluorescein (n.) A yellowish red, crystalline substance, C20H12O5, produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green fluorescence of its alkaline solutions. It has acid properties, and its salts of the alkalies are known to the trade under the name of uranin..

#NAME? :: -ide () A suffix used to denote: (a) The nonmetallic, or negative, element or radical in a binary compound; as, oxide, sulphide, chloride. (b) A compound which is an anhydride; as, glycolide, phthalide. (c) Any one of a series of derivatives; as, indogenide, glucoside, etc..

Tartrelic :: Tartrelic (a.) Of, pertaining to, or designating, an anhydride, C4H4O5, of tartaric acid, obtained as a white crystalline deliquescent substance..

Lactimide :: Lactimide (n.) A white, crystalline substance obtained as an anhydride of alanine, and regarded as an imido derivative of lactic acid..

Lactim :: Lactim (n.) One of a series of anhydrides resembling the lactams, but of an imido type; as, isatine is a lactim. Cf. Lactam..

Succinite :: Succinimide (n.) A white crystalline nitrogenous substance, C2H4.(CO)2.NH, obtained by treating succinic anhydride with ammonia gas. It is a typical imido acid, and forms a series of salts. See Imido acid, under Imido..

Meconin :: Meconin (n.) A substance regarded as an anhydride of meconinic acid, existing in opium and extracted as a white crystalline substance. Also erroneously called meconina, meconia, etc., as though it were an alkaloid..

Arsenic :: Arsenic (n.) Arsenious oxide or arsenious anhydride; -- called also arsenious acid, white arsenic, and ratsbane..

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