Lewis & Short

crassāmentum, i, n. [crasso] (post-Aug.), the thickness of an object.

  1. I. In gen.: portarum, Plin. 16, 40, 77, § 210: surculi, Gell. 17, 9, 7.
  2. II. Esp., the thick sediment of a liquid, the dregs, grounds, Col. 12, 12, 1.