Appendage

[Sarah]

A subordinate or subsidiary part or organ; an external organ orlimb, esp. of the articulates.Antennæ and other appendages used for feeling. Carpenter.

[Sarah]

1. The word appendage takes place to show the need for change.
   2.It also means a protrusion from something.

[Sarah]

Noun.
Describing the need for change.

[Zipporah Schumaker]

something that exists as a smaller and less important part of something larger:

[Tanya Shivari]

(often with negative or pejorative connotations) a thing that is added or attached to something larger or more important.