ac·to·my·o·sin ( k t -m  -s n)n. The system of actin and myosin that, with other substances, constitutes muscle fiber and is responsible for muscular contraction. |
actomyosin [ˌæktəʊˈmaɪəsɪn]
n
(Life Sciences & Allied Applications / Biochemistry) a complex protein in skeletal muscle that is formed by actin and myosin and which, when stimulated, shortens to cause muscle contraction
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | actomyosin - a protein complex in muscle fibers; composed of myosin and actin; shortens when stimulated and causes muscle contractions protein - any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes; "a diet high in protein" actin - one of the proteins into which actomyosin can be split; can exist in either a globular or a fibrous form myosin - the commonest protein in muscle; a globulin that combines with actin to form actomyosin |
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