Main Entry:

¹op·po·nent

Pronunciation:

\ə-ˈpō-nənt\

Function:

noun

Etymology:

Latin opponent-, opponens, present participle of opponere

Date:

1560

1 : one that takes an opposite position (as in a debate, contest, or conflict) 2 : a muscle that opposes or counteracts and limits the action of another