actomyosin

[ ak-tuh-mahy-uh-sin ]

noun

, Biochemistry.

1. a complex protein, consisting of myosin and actin, that is the major constituent of skeletal muscle and is thought to interact with ATP to cause muscle contraction.

actomyosin

/ ˌæktəʊˈmaɪəsɪn /

noun

1. a complex protein in skeletal muscle that is formed by actin and myosin and which, when stimulated, shortens to cause muscle contraction

Word History and Origins

Origin of actomyosin¹

First recorded in 1940–45; act(in) + -o- + myosin