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myofibril

play
noun myo·fi·bril \ˌmī-ə-ˈfī-brəl, -ˈfi-\

Definition of myofibril

  1. :  any of the longitudinal parallel contractile elements of a muscle cell that are composed of myosin and actin

myofibrillar play \-brə-lər\ adjective


Origin of myofibril

New Latin myofibrilla, from my- + fibrilla fibril


First Known Use: 1898


Medical Dictionary

myofibril

play
noun myo·fi·bril \ˌmī-ō-ˈfīb-rəl, -ˈfib-\

Medical Definition of myofibril

  1. :  one of the longitudinal parallel contractile elements of a muscle cell that are composed of myosin and actin

myofibrillar \-rə-lər\play adjective


Illustration of myofibril


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