polyp has definitions from the fields of zoology,medicine,pathology
1
[ noun ] (medicine,pathology) a small vascular growth on the surface of a mucous membrane

Synonyms

polypus

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

Related terms

coelenterate Cnidaria

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