precipitate

(pre-sip’it-at) [L. precipita’re to cast down]. 1. To cause a substance in solution to settle down in solid particles. 2. (L. precipita’- tum.) A deposit made or substance thrown down by precipitation. 3. Hasty; headlong; as precipitate labor. P+ red mercuric oxid, HgO. sweet p., calomel. white p., ammoniated mercury, NH,HgCl. yellow p., yellow mercuric oxid, HgO.