biceps

 
Pronunciation: /ˈbʌɪsɛps/

noun (plural )

  • any of several muscles having two points of attachment at one end, in particular:
  • (also biceps brachii /ˈbreɪkɪʌɪ/) a large muscle in the upper arm which turns the hand to face palm uppermost and flexes the arm and forearm: he clenched his fist and exhibited his bulging biceps
  • (also biceps femoris /fɪˈmɔːrɪs/ or leg biceps) Anatomy a muscle in the back of the thigh which helps to flex the leg.

Origin:

mid 17th century: from Latin, literally 'two-headed', from bi- 'two' + -ceps (from caput 'head')

Spelling help

The plural of biceps is the same as the singular: biceps.