'appendage' definitions:

Definition of 'appendage'

(from WordNet)
noun
An external body part that projects from the body; "it is important to keep the extremities warm" [syn: extremity, appendage, member]
noun
A natural prolongation or projection from a part of an organism either animal or plant; "a bony process" [syn: process, outgrowth, appendage]
noun
A part that is joined to something larger