1.Definition: a small vascular growth on the surface of a mucous membrane

Related Noun(s):polypus

Category: General

2.Definition: one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth

"In some species of coelenterate, polyps are a phase in the life cycle that alternates with a medusoid phase"

Category: Animals