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exterminator

[ik-stur-muh-ney-ter] /ɪkˈstɜr məˌneɪ tər/
noun
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., especially by the controlled application of toxic chemicals.
Origin of exterminator
1605-1615
1605-15; < Late Latin exterminātor. See extermine, -ator
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Word Origin and History for exterminator
n.

c.1400, "an angel who expells (people from a country)," from Late Latin exterminator, from Latin exterminatus, past participle stem of exterminare (see exterminate). As a substance for ridding a place of rats, etc., by 1848. As a person whose job it is to do this, by 1938.

Online Etymology Dictionary, © 2010 Douglas Harper
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