1. Masses of small bubbles on the surface of a liquid. 2. To produce such bubbles. 3. Masses of air cells in a solid or semisolid, as in f. rubber.
- human fibrin f. a dry artificial sponge of human fibrin prepared by clotting with thrombin a f. of a solution of human fibrinogen; the clotted f. is dried from the frozen state and heated; used as a topical anticoagulant.
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foam 'fōm n a light frothy mass of fine bubbles formed in or on the surface of a liquid <spermicidal \foam>
foam vb
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(fōm) [A.S. fām] 1. a dispersion of gas in a liquid or solid, e.g., whipped cream or pumice. 2. frothy saliva, produced particularly on exertion or pathologically. 3. the frothy sweat of an equine. 4. to produce or cause production of such a substance.Medical dictionary. 2011.