myofilaments

myofilament

[mahy-uh-fil-uh-muhnt]
noun Cell Biology.
a threadlike filament of actin or myosin that is a component of a myofibril.

Origin:
1945–50; myo- + filament

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American Heritage
Medical Dictionary

myofilament my·o·fil·a·ment (mī'ə-fĭl'ə-mənt)
n.
Any of the ultramicroscopic filaments, made up of actin and myosin, that are the structural units of a myofibril.

The American Heritage® Stedman's Medical Dictionary
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