n. A genus of hollow-horned ruminants, having simple horns in both sexes, typical of the family Bovidæ and subfamily Bovinæ, containing the oxen, or cattle.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. wild and domestic cattle; in some classifications placed in the subfamily Bovinae or tribe Bovini
Word Usage
"Actually, I hoped that would finish the job, but to make sure, I told her to be at that call bos on Tuesday."