The Collaborative International Dictionary of English v.0.48:
Mower \Mow"er\ (m[=o]"[~e]r), n. One who, or that which, mows; a mowing machine; as, a lawn mower. [1913 Webster]WordNet (r) 3.0 (2006):
mower n 1: garden tool for mowing grass on lawns [syn: lawn mower, mower]