WordReference Random House Unabridged Dictionary of American English © 2025
re•leas•er
(ri lē′sər),USA pronunciation n.
- Animal Behaviora person or thing that releases.
- Animal Behavior[Ethology.]a key stimulus, as a sound, odor, moving shape, or patch of color, that elicits a predictable behavioral response in an animal.
- late Middle English. See release, -er1 1425–75
'releaser' also found in these entries (note: many are not synonyms or translations):