tactile hair

tactile hair

noun
any highly sensitive hair of an animal, as the whiskers of a cat or hairs on a hedgehog's snout.
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American Heritage
Science Dictionary
tactile hair  
A hair or hairlike structure that is highly sensitive to pressure or touch. Tactile hairs help organisms sense their environment. They cover the bodies of most insects and are found in many mammals, especially as whiskers.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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