Definition of muscle:

part of speech: noun

The fleshy parts of an animal body by which it moves.

part of speech: noun

A mass of contractile fibres with motorial function; the fleshy part of the body, composed of muscular tissue.

part of speech: noun

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.

part of speech: noun

Contractile fleshy tissue of animals.

Usage examples for muscle:

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Attached by the base; innate, or having the filament attached to base of anther. ...