femoral biceps vs biceps

femoral biceps and biceps both are nouns.

Word	Noun	Adjective	Verb	Adverb
femoral biceps	Yes	No	No	No
biceps	Yes	No	No	No

As nouns, biceps is a hypernym of femoral biceps; that is, biceps is a word with a broader meaning than femoral biceps:

femoral biceps: the biceps muscle of the thigh; it flexes the knee and rotates the leg laterally
biceps: any skeletal muscle having two origins (but especially the muscle that flexes the forearm)

femoral biceps (noun)	biceps (noun)
the biceps muscle of the thigh; it flexes the knee and rotates the leg laterally	any skeletal muscle having two origins (but especially the muscle that flexes the forearm)