外がい転てん筋きんがいてんきんMeanings1nounabductor muscleAnatomical term for a muscle that moves a limb or part away from the midline of the body. Often contrasted with 内転筋 (adductor muscle).See also: 内転筋股こ関かん節せつの外がい転てん筋きんを鍛きたえると、歩