Found 2 items, similar to omasum.
English → English (WordNet) Definition: omasum omasum n : the third compartment of the stomach of a ruminant [syn: psalterium, third stomach] [also: omasa (pl)]
English → English (gcide) Definition: Omasum Omasum \O*ma"sum\, n. [L.] (Anat.) The third division of the stomach of ruminants. See Manyplies, and Illust. under Ruminant. [1913 Webster]