a quadriceps femoris muscle

Short for 大腿四頭筋 (daitai shitōkin, “quadriceps muscle”).

a thigh muscle

to forge, to train

a biceps femoris muscle

thigh

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

muscle / tendon / have an aptitude / vein / (usually in place names) road