voluntary muscle: Meaning and Definition of

vol'untary mus'cle

Pronunciation: [key]
— Anat. Anat.
  1. muscle whose action is normally controlled by an individual's will; mainly skeletal muscle, composed of parallel bundles of striated, multinucleate fibers.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.