polyps

'polyps'

[polyp.n.01] as in: a small vascular growth on the surface of a mucous membrane

'polyps'

[polyp.n.02] as in: one of two forms that coelenterates take (e.g.

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a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth

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