筋きん組そ織しききんそしきMeanings1nounmuscular tissue; muscle tissueanatomyAnatomical term referring to the tissue that makes up muscles.筋きん組そ織しきは、骨こっ格かく筋きん、平へい滑かつ筋きん、心しん筋きんに分ぶん類るいされる。Muscular tissue is classified into skeletal muscle, smooth muscle, and cardiac muscle.