a snake that kills its prey by coiling tightly around it, causing suffocation.
Anatomy. a muscle that constricts a hollow part of the body, as the pharynx.
a person or thing that constricts.

1700–10; < Neo-Latin; see constrict, -tor Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
constrictor (kənˈstrɪktə)
1.  any of various nonvenomous snakes, such as the pythons, boas, and anaconda, that coil around and squeeze their prey to kill it
2.  any muscle that constricts or narrows a canal or passage; sphincter
3.  a person or thing that constricts

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

constrictor con·stric·tor (kən-strĭk'tər)
One that constricts, especially a muscle that contracts or compresses a part or organ of the body.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
His neck was the lithe neck of a boa-constrictor, but glossy as with a sweat of oil.
To a boa constrictor, those beats are simply a sign that it hasn't finished killing yet.
These constrictor snakes were originally released by hobbyists when they outgrew their tanks.
He has also befriended an alligator, an ostrich, a bat and a boa constrictor.
Image for constrictor
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