Pronunciation: (ik-stûr'mu-nā"tur), [key]
1. a person or thing that exterminates.
2. a person or business establishment specializing in the elimination of vermin, insects, etc., from a building, apartment, etc., esp. by the controlled application of toxic chemicals.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.