WordReference Random House Unabridged Dictionary of American English © 2025
ac•to•my•o•sin
(ak′tə mī′ə sin),USA pronunciation n. [Biochem.]
- Biochemistrya 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.
- act(in) + -o- + myosin 1940–45
'actomyosin' also found in these entries (note: many are not synonyms or translations):