acid radical — noun 1. : the negative ion (as the sulfate ion SO4 ) of an acid : anion now used especially by analysts 2. : a radical formed by removal of all hydroxyl or analogous groups (as mercapto) from an acid benzoyl C6H5CO is the acid radical… … Useful english dictionary
acid radical — acid molecule remnant once the acidic hydrogen has been removed; radical created from an acid by loss of one or more hydrogen ions … English contemporary dictionary
acid radical — 1. the electronegative element which combines with hydrogen to form an acid. 2. all of an acid except the hydroxyl group … Medical dictionary
acid radical — Chem. the remainder of an acid molecule after acidic hydrogen has been removed. * * * … Universalium
Acid salt — Salt Salt, n. [AS. sealt; akin to OS. & OFries. salt, D. zout, G. salz, Icel., Sw., & Dan. salt, L. sal, Gr. ?, Russ. sole, Ir. & Gael. salann, W. halen, of unknown origin. Cf. {Sal}, {Salad}, {Salary}, {Saline}, {Sauce}, {Sausage}.] 1. The… … The Collaborative International Dictionary of English
acid — n. & adj. n. 1 Chem. a any of a class of substances that liberate hydrogen ions in water, are usu. sour and corrosive, turn litmus red, and have a pH of less than 7. b any compound or atom donating protons. 2 (in general use) any sour substance.… … Useful english dictionary
Acid — Ac id, n. 1. A sour substance. [1913 Webster] 2. (Chem.) One of a class of compounds, generally but not always distinguished by their sour taste, solubility in water, and reddening of vegetable blue or violet colors. They are also characterized… … The Collaborative International Dictionary of English
Acid rain — is rain or any other form of precipitation that is unusually acidic. It has harmful effects on plants, aquatic animals, and infastructure. Acid rain is mostly caused by human emissions of sulfur and nitrogen compounds which react in the… … Wikipedia
Radical — Rad i*cal (r[a^]d [i^]*kal), n. 1. (Philol.) (a) A primitive word; a radix, root, or simple, underived, uncompounded word; an etymon. (b) A primitive letter; a letter that belongs to the radix. [1913 Webster] The words we at present make use of,… … The Collaborative International Dictionary of English
Radical (chemistry) — Free radical redirects here. For other uses, see Free radical (disambiguation). Moses Gomberg (1866 1947), the founder of radical chemistry Radicals (often referred to as free radicals) are atoms, molecules, or ions with unpaired electrons on an… … Wikipedia
