(anatomy) Muscle that is normally controlled by individual volition; skeletal muscle.

(anatomy, cardiology) The striated and involuntary muscle of the vertebrate heart.

(bodybuilding) A sleeveless shirt tailored to display the muscles of the body.

(anatomy) The voluntary muscle of vertebrates, which is striated and anchored by tendons to bone and is used to effect skeletal movement such as locomotion.

A form of periodization or cross-training designed to achieve maximum results while avoiding the plateau effect, allowing muscle groups to improve continuously during phases of controlled yet unfamiliar movements.

(Canada, humorous slang) Beer belly.

(idiomatic) Person who is hired or asked to perform tasks or duties requiring physical strength.

(anatomy) Synonym of temporalis.

plural of muscle fiber

plural of muscle fibre