prowlPronunciation: (proul), [key]
to rove or go about stealthily, as in search of prey, something to steal, etc.
to rove over or through in search of what may be found: The cat prowled the alleys in search of food.
act of prowling.
2. on the prowl,
in the act of prowling; searching stealthily: The cat is on the prowl for mice.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.