(anatomy) the cremaster muscle.

(anatomy) Rectus lateralis muscle of the eye; muscle that moves the eye away from the center of the face.

(Canada, humorous slang) Beer belly.

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.

(anatomy) Any of the four muscles that are the primary participants in mastication: the masseter, the temporalis, the medial pterygoid, and the lateral pterygoid.

A mentalist's technique to determine the thoughts or knowledge of a subject by observing subtle, involuntary movements in response to speech or other stimuli.

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

(anatomy) Synonym of temporalis.

(anatomy) One of several muscles located in the ventricles of the heart and preventing the atrioventricular valves from prolapsing on systole.

Each of the four large paired muscles covering the front of the rib cage and serve to draw the forelimbs toward the chest.