myofilament

[ mahy-uh-fil-uh-muh nt ]
/ ˌmaɪ əˈfɪl ə mənt /

noun Cell Biology.

a threadlike filament of actin or myosin that is a component of a myofibril.

Origin of myofilament

First recorded in 1945–50; myo- + filament

Medical definitions for myofilament

myofilament
[ mī′ə-fĭlə-mənt ]

n.

Any of the ultramicroscopic filaments, made up of actin and myosin, that are the structural units of a myofibril.