agonist

About 1.59 uses per million words.

Meaning

1. noun Someone involved in a contest or battle (as in an agon), protagonist.
2. noun The muscle that contracts while the other relaxes.

   When bending the elbow, the biceps is the agonist.

3. noun A molecule that can combine with a receptor on a cell to produce a physiological reaction.

   Acetylcholine is an agonist at the cholinergic receptor.

Similar words

agonistic isoproterenol muscimol clonidine apomorphine baclofen bronchodilators ligand effector enhancer

Often followed by

and activity binding in at is or therapy for

Word family

agonists