Source : Webster's Revised Unabridged Dictionary (1913)

Poacher \Poach"er\, n.
   1. One who poaches; one who kills or catches game or fish
      contrary to law.

   2. (Zo["o]l.) The American widgeon. [Local, U.S.]

   {Sea poacher} (Zo["o]l.), the lyrie.

Source : WordNet®

poacher
     n 1: someone who hunts or fishes illegally on the property of
          another
     2: a cooking vessel designed to poach food (such as fish or
        eggs)
     3: small slender fish (to 8 inches) with body covered by bony
        plates; chiefly of deeper northern Pacific waters [syn: {sea
        poacher}, {sea poker}]