actinn. 肌動蛋白學術名詞肌動蛋白：生命科學、化學術語、心理學、畜牧學、動物學、醫學肌纖朊：動物學肌原纖維：魚類英文釋義one of the proteins into which actomyosin can be split; can exist in either a globular or a fibrous form