Multif´idus, a. for n. A certain spinal muscle.

Multip´arous, a. Producing many young.

Mus´cle, n. (musculus, pl. musculi). Organ of animal motion, consisting of contractile fibre, the shortening of which draws upon attached parts. With the muscular tissue is usually associated a fibrous ligament, the tendon or “leader.” Voluntary muscles have striped fibre, contracting at will of the animal; such are all those of the general system, moving the bones, effecting locomotion, mastication, etc. Involuntary muscles mostly have plain fibre contractile under special stimuli without obedience to the will; such are those of the intestines, etc.

Mus´cular, a. Pertaining to muscle; having muscle or composed of muscle; resulting from muscle: as, muscular fibre, muscular organ, muscular exertion. Also, strong, vigorous: the falcon is a muscular bird.

Mu´ticus, a. Unarmed; as, a toe without a claw, an unspurred tarsus. (133.)

Myelenceph´alon, n. Whole cerebro-spinal column.

My´elon, n. The spinal cord.

Myolem´ma, n. Sheath of muscular fibre.

Myol´ogy, n. Doctrine or description of the muscles.

Myx´a, n. End of the mandible, as far as the symphysis, corresponding to the dertrum of the maxilla. (25).