caruncle
/ˈkɛrəŋkəl/
noun
- A small, fleshy outgrowth on a plant or animal, such as the red comb on a bird's head or the bump at the base of a seed.
- The seed's caruncle helps attract ants that carry it away.
- The turkey's caruncle changed color when it was excited.
- The rooster's bright red caruncle bobbed as it crowed.