appendicle
/əˈpɛndɪkəl/
noun
- A small, attached part or appendage, especially a minor outgrowth on a plant or animal.
- Under the microscope, the appendicle appeared as a small, finger-like projection.
- Each appendicle on the insect's antenna helps it sense its surroundings.
- The botanist examined the tiny appendicle at the base of the leaf.