noun
abdominal external oblique muscle
Anatomical term for the outermost of the three flat abdominal muscles, running diagonally downward and inward.
外腹斜筋は腹筋群の一つで、体幹をひねる動作に関与する。
The external oblique muscle is one of the abdominal muscles and is involved in twisting the torso.
Compound of 外 (outside) + 腹 (abdomen) + 斜 (oblique) + 筋 (muscle), directly describing its location and fiber direction.