Lewis Short
crassāmentum (noun N) : id. (post-Aug.)
* The thickness of an object.
* In gen.: portarum,Plin. 16, 40, 77, § 210: surculi,Gell. 17, 9, 7.
* Esp., the thick sediment of a liquid, the dregs, grounds, Col. 12, 12, 1.
Charlton T. Lewis, Charles Short, A Latin Dictionary