appendage

/əˈpɛndɪdʒ/
noun
  1. A part that is attached to something larger or more important, especially a body part like an arm, leg, or tail.
    • He waved his arms wildly, every appendage flailing in the wind.
    • Spiders have eight legs, each appendage covered in tiny hairs.
    • The lizard lost its tail as a defense mechanism, but the appendage will grow back.
  2. Something added to something else, often as a less important part.
    • The new wing of the museum is a modern appendage to the historic building.
    • The committee was just an appendage of the main board, with little real power.
    • The appendix is often considered a useless appendage of the human digestive system.
What does "appendage" mean? | whatsthatwordmean | whatsthatwordmean