biceps(n = noun.body) - any skeletal muscle having two origins (but especially the muscle that flexes the forearm);
is a kind of skeletal muscle, striated muscle
has particulars: femoral biceps, musculus biceps femoris, biceps brachii, biceps humeri, musculus biceps brachii
Derived form adjective bicipital₁

   A muscle having two heads or origins; -- applied particularly to a flexor in the arm, and to another in the thigh. [1913 Webster]

biceps, n. a muscle having two heads or attachments, esp. the one which bends the elbow.

Etymology:
L, = two-headed, formed as BI- + - ceps f. caput head

biceps brachii, biceps humeri, femoral biceps, musculus biceps brachii, musculus biceps femoris