1. To make thick or thicker; to thicken; the contrary to attenuate.
2. In pharmacy, to make fluids thicker by the mixture of other substances less fluid, or by evaporating the thinner parts.
Acids dissolve or attenuate; alkalies precipitate or incrassate.
INCRAS'SATE, v.i. To become thick or thicker.
INCRAS'SATE