Crass(kr?s), a. [L. crassus thick, fat, gross, prob. orig., closely woven. See Grease animal fat, and cf. Crate, Hurdle.] Gross; thick; dense; coarse; not elaborated or refined. "Crass and fumid exhalations." Sir. T. Browne. "Crass ignorance" Cudworth.
Cras`sa*men"tum(-m?n"t?m), } n. [L. crassamentum, fr. crassare to make thick. See Crass, a.] A semisolid mass or clot, especially that formed in coagulation of the blood.
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