appendage
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/əˈpendɪdʒ/
🇬🇧
/əˈpendɪdʒ/
Something attached to a larger or more important thing.
The small room was just an appendage to the main building, serving no real purpose.
A part sticking out of a living creature that has a specific function.
An octopus uses its appendages to explore its environment and grab things.