[ ri-lee-ser ]
/ rɪˈli sər /


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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for releaser