1. a person or thing that releases something
2. a substance that triggers the release of another substance or response
Usage: biology; psychology

Examples

• The wildlife sanctuary acted as a releaser of injured birds back into their natural habitat.
• She was the releaser of confidential documents to the press.
• The hormone acts as a releaser for the body’s stress response.
• Scientists identified the chemical releaser that triggers mating behavior in the species.
• The judge served as the releaser of the defendant on bail.
• This enzyme functions as a releaser of stored energy in cells.