Omasum

·noun The third division of the stomach of ruminants. ·see Manyplies, and ·Illust. under Ruminant.

omasum
ŏmāsum or ŏmassum, i, n. [Gallic; v. infra], bullock's tripe (poet. and in post-Aug. prose): omas...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
omasum
omāsum ī, n Gallic, bullock's tripe : patinas cenebat omasi, H.: pinguis, H. ...

An Elementary Latin Dictionary