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. [ 1913 Webster ]
n. See Crassament. [ 1913 Webster ]
n. [ L. crassitudo. ] Grossness; coarseness; thickness; density. Bacon. [ 1913 Webster ]
n. Grossness. [ Obs. ] Glanvill. [ 1913 Webster ]
v. t.
Acids dissolve or attenuate; alkalies precipitate or incrassate. Sir I. Newton. [ 1913 Webster ]
Liquors which time hath incrassated into jellies. Sir T. Browne. [ 1913 Webster ]
v. i. To become thick or thicker.
n. [ Cf. F. incrassation. ] [ 1913 Webster ]
a. Having the quality of thickening; tending to thicken. Harvey. [ 1913 Webster ]
n. A substance which has the power to thicken; formerly, a medicine supposed to thicken the humors. Harvey. [ 1913 Webster ]