Meaning of myofilament

my•o•fil•a•ment

Pronunciation: (mī"u-fil'u-munt), [key]
— n. Cell Biol.
  1. a threadlike filament of actin or myosin that is a component of a myofibril.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.