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]

U.S. Gazetteer Counties (2000):

Mower -- U.S. County in Minnesota
   Population (2000):    38603
   Housing Units (2000): 16251
   Land area (2000):     711.497974 sq. miles (1842.771214 sq. km)
   Water area (2000):    0.209780 sq. miles (0.543328 sq. km)
   Total area (2000):    711.707754 sq. miles (1843.314542 sq. km)
   Located within:       Minnesota (MN), FIPS 27
   Location:             43.659303 N, 92.838981 W
   Headwords:
    Mower
    Mower, MN
    Mower County
    Mower County, MN