Emily Dickinson Lexicon

IN-CRAS'SATE, v.t. [L. incrasso, incrassatus; in and crassus, thick.]

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. Newton.