polyp: Meaning and Definition of

pol•yp

1. 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.
2. an individual zooid of a compound or colonial organism.
2. a projecting growth from a mucous surface, as of the nose, being either a tumor or a hypertrophy of the mucous membrane.