Main Entry:

tri·ceps

Pronunciation:

\ˈtrī-ˌseps\

Function:

noun

Inflected Form(s):

plural triceps

Etymology:

New Latin tricipit-, triceps, from Latin, three-headed, from tri- + capit-, caput head — more at head

Date:

1676

: a muscle that arises from three heads ; especially : the large extensor muscle along the back of the upper arm