agonist

agonist antonyms

antagonist compare agonist and antagonist
resister compare agonist and resister
opponent compare agonist and opponent
opposer compare agonist and opposer
adversary compare agonist and adversary

agonist definitions

noun

  • Someone involved in a contest or battle (as in an agon), protagonist. 

  • The muscle that contracts while the other relaxes. 

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