"polyps" in the noun sense
1. polyp, polypus
a small vascular growth on the surface of a mucous membrane
2. polyp
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"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License