extract [L, ex, out, trahere, to draw] , 1. n., a substance, usually a biologically active ingredient, prepared by the use of solvents or evaporation to separate the substance from the original material. 2. a concentrated form of an herb that is derived when the crude herb is mixed with water, alcohol, or another solvent and distilled or evaporated. Extracts may be either fluid or solid. 3. v., to remove a tooth from the oral cavity by means of elevators or forceps or both. −extraction, n.
