Definition of muscle:

• one of the contractile organs of the body
• authority or power or force ( especially when used in a coercive way); " the senators used their muscle to get the party leader to resign"
• a bully employed as a thug or bodyguard; " the druglord had his muscleman to protect him"
• An organ which, by its contraction, produces motion.
• The contractile tissue of which muscles are largely made up.
• Muscular strength or development; as, to show one's muscle by lifting a heavy weight.
• See Mussel.
• An organ of fiberlike tissue which is capable of being contracted and expanded, thus producing movement in an animal body; colloquially, the strength of such organs.
• One of the contractile organs of the body by which the movements of the various organs and parts are effected. The typical muscle is a mass of fleshy tissue ( venter or belly), attached at each extremity, by means of a tendon, to a bone or other structure; the narrowing part of the belly which is attached to the tendon of origin or insertion is called the caput or head; the points of attachment of a muscle are called its origin and insertion, the attachment to the more movable part of the skeleton or to the part which is moved by contraction of the muscle being the insertion, the other the origin. The individual muscles are defined under musculus.
• Fibrous bundles of flesh by which movements of the body are accomplished.
• The fleshy parts of an animal body by which it moves.
• Contractile fleshy tissue of animals.
• A deep red, vascular, and highly contractile organ, consisting of fibres, or bundles of fibres, inclosed in a thin cellular membrane, by which the movements in the animal body are effected; a mussel.
• One of the organs of motion in the body- the muscles form the red fleshy portions of land animals; a shell- fish.
• A mass of contractile fibres with motorial function; the fleshy part of the body, composed of muscular tissue.
• [ Latin] A mass of contractile fibres with motorial function; the fleshy part of the body, composed of muscular tissue( phys.).

Usage examples for muscle

1. " Would you mind," she said, " letting me feel your muscle?"  A Bicycle of Cathay by Frank R. Stockton

2. There's something you can do that don't take no muscle and don't take no knowledge.  The Rangeland Avenger by Max Brand

3. His men strained every muscle to reach her.  The Three Lieutenants by W.H.G. Kingston

4. Not a muscle moved as the Frenchman waited.  The Whelps of the Wolf by George Marsh