D defs.my
Entry 2 senses Webster, 1913

Mouser

/mouz'-ẽr/ · Mous·er · IPA /ˈmaʊzə(ɹ)/
01 n. A cat that catches mice; as, a good mouser is better than a dozen mousetraps.
  1. 1.
    A cat that catches mice; as, a good mouser is better than a dozen mousetraps.
  2. 2.
    One who pries about on the lookout for something.