releaser

[ ri-lee-ser ]
/ rɪˈli sər /

noun

a person or thing that releases.
Ethology. a key stimulus, as a sound, odor, moving shape, or patch of color, that elicits a predictable behavioral response in an animal.

Origin of releaser

1425–75; late Middle English. See release, -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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