Zoology .

a sedentary type of animal form characterized by a more or less fixed base, columnar body, and free end with mouth and tentacles, esp. as applied to coelenterates.

an individual zooid of a compound or colonial organism.

Pathology . a projecting growth from a mucous surface, as of the nose, being either a tumor or a hypertrophy of the mucous membrane.

noun

anemone , coelenterate , coral , growth , hydra , hydroid , tumor