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precipitate |
7 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Precipitate \Pre*cip"i*tate\, n. [NL. praecipitatum: cf F. pr['e]cipit['e].] 1. (Chem.) An insoluble substance separated from a solution in a concrete state by the action of some reagent added to the solution, or of some force, such as heat or cold. The precipitate may fall to the bottom (whence the name), may be diffused through the solution, or may float at or near the surface. {Red precipitate} (Old. Chem), mercuric oxide ({HgO}) a heavy red crystalline powder obtained by heating mercuric nitrate, or by heating mercury in the air. Prepared in the latter manner, it was the {precipitate per se} of the alchemists. {White precipitate} (Old Chem.) a A heavy white amorphous powder ({NH2.HgCl}) obtained by adding ammonia to a solution of mercuric chloride or corrosive sublimate; -- formerly called also {infusible white precipitate}, and now {amido-mercuric chloride}. b A white crystalline substance obtained by adding a solution of corrosive sublimate to a solution of sal ammoniac (ammonium chloride); -- formerly called also {fusible white precipitate}. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Precipitate \Pre*cip"i*tate\, v. i. 1. To dash or fall headlong. [R.] So many fathom down precipitating. --Shak. 2. To hasten without preparation. [R.] 3. (Chem.) To separate from a solution as a precipitate. See {Precipitate}, n. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Precipitate \Pre*cip"i*tate\, a. [L. praecipitatus p. p. of praecipitare to precipitate, fr praeceps headlong. See {Precipice}.] 1. Overhasty; rash; as the king was too precipitate in declaring war. --Clarendon. 2. Lacking due deliberation or care hurried; said or done before the time; as a precipitate measure. ``The rapidity of our too precipitate course.'' --Landor. 3. Falling, flowing, or rushing, with steep descent; headlong. Precipitate the furious torrent flows. --Prior. 4. Ending quickly in death; brief and fatal; as a precipitate case of disease. [Obs.] --Arbuthnot. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Precipitate \Pre*cip"i*tate\, v. t. [imp. & p. p. {Precipitated}; p. pr & vb n. {Precipitating}.] 1. To throw headlong; to cast down from a precipice or height. She and her horse had been precipitated to the pebbled region of the river. --W. Irving. 2. To urge or press on with eager haste or violence; to cause to happen, or come to a crisis, suddenly or too soon; as precipitate a journey, or a conflict. Back to his sight precipitates her steps. --Glover. If they be daring, it may precipitate their designs, and prove dangerous. --Bacon. 3. (Chem.) To separate from a solution, or other medium, in the form of a precipitate; as water precipitates camphor when in solution with alcohol. The light vapor of the preceding evening had been precipitated by the cold. --W. Irving. From WordNet r 1.6 [wn]: precipitate adj : done with very great haste and without due deliberation; "hasty marriage seldom proveth well"- Shakespeare; "hasty makeshifts take the place of planning"- Arthur Geddes; "rejected what was regarded as an overhasty plan for reconversion"; "wondered whether they had been rather precipitate in deposing the king" [syn: {hasty}, {overhasty}, {precipitant}] n : a precipitated solid substance in suspension or after settling or filtering v 1: bring about abruptly: "The crisis precipitated by Russia's revolution" 2: separate from solution as a fine suspension of solid particles, in chemistry [syn: {separate from solution}] 3: cause to separate from solution or suspension 4: fall from clouds; "rain, snow and sleet were falling" [syn: {come down}, {fall}] 5: fall vertically and sharply 6: fall headlong 7: hurl or throw violently 8: fall abruptly into a different condition From THE DEVIL'S DICTIONARY ((C)1911 Released April 15 1993) [devils]: PRECIPITATE, adj Anteprandial. Precipitate in all this sinner Took action first and then his dinner. Judibras From THE DEVIL'S DICTIONARY ((C)1911 Released April 15 1993) [devils]: PRECIPITATE, adj Anteprandial. Precipitate in all this sinner Took action first and then his dinner. Judibras
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