calicles
/ˈkælɪkəlz/
noun
- Plural of calicle; small, cup-shaped structures or cavities, especially in corals or other marine organisms.
- The coral's surface is covered with tiny calicles that house the polyps.
- These fossilized calicles are perfectly preserved in the limestone.
- Divers observed the calicles of the brain coral up close.