Agonist - Meaning, Definition & English Examples
An agonist is a substance that activates a receptor in the body to produce a biological response. It is often used in medicine to mimic natural compounds and stimulate specific effects.
Definition:
A substance that activates a receptor to produce a biological response, or a protagonist in drama.
Synonyms:
protagonist, champion, supporter, advocate
Part of Speech:
noun
Antonyms:
antagonist, opponent
Common Collocations:
receptor agonist, muscle agonist, dopamine agonist, partial agonist
Derivatives:
agonistic, agonism
Usage Tips:
Use "agonist" in pharmacology for substances or in literature for main characters opposing antagonists.
Common Phrases:
muscle agonist, dopamine agonist, partial agonist
Etymology:
From Greek "agōnistēs," meaning contestant or combatant, related to "agōn" (contest).
Examples:
- 1. The agonist binds to the receptor and triggers a response.
- 2. In the play, the hero is the agonist fighting against injustice.
- 3. Dopamine agonists are used to treat Parkinson's disease effectively.
- 4. The muscle agonist contracts while the antagonist relaxes during movement.