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"Appendage" Definition

noun

Biology A part or organ, such as an arm, leg, tail, or fin, that is joined to the axis or trunk of a body.
Something added or attached to an entity of greater importance or size; an adjunct.
An adjunct to something larger or more important .
A usually projecting part of an animal or plant body that is typically smaller and of less functional importance than the main part to which it is attached.
A limb or analogous part (as a seta).