noun
thigh muscle; femoral muscle
Anatomical term referring to the muscles of the thigh, such as the quadriceps or hamstrings.
大腿筋を鍛えると、歩くのが楽になります。
Strengthening your thigh muscles makes walking easier.
Compound of 大腿 (thigh) and 筋 (muscle). The exact historical derivation is uncertain, but the spelling is conventionally associated with the anatomical meaning.