アクトミオシンMeanings1nounactomyosinBiochemistry term for the protein complex of actin and myosin, responsible for muscle contraction.アクトミオシンは筋きん肉にく収しゅう縮しゅくに重じゅう要ような役やく割わりを果はたす。Actomyosin plays an important role in muscle contraction.