In‐cras″sate (?), v. t. [imp. & p. p.Incrassated (?); p. pr. & vb. n.Incrassating.] [L. incrassatus, p. p. of incrassare; pref. in- in + crassus thick.] To make thick or thicker; to thicken; especially, in pharmacy, to thicken (a liquid) by the mixture of another substance, or by evaporating the thinner parts.
Acids dissolve or attenuate; alkalies precipitate or incrassate. Sir I. Newton.
Liquors which time hath incrassated into jellies. Sir T. Browne.