Hypertext Webster Gateway: "polyp"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Polyp \Pol"yp\, n. [L. polypus, Gr. ?, ?, literally,
many-footed; poly`s many + ?, ?, foot: cf. F. polype. See
{Poly-} and {Foot}, and cf. {Polypode}, {Polypody}, {Poulp}.]
(Zo["o]l.)
(a) One of the feeding or nutritive zooids of a hydroid or
coral.
(b) One of the Anthozoa.
(c) pl. Same as {Anthozoa}. See {Anthozoa}, {Madreporaria},
{Hydroid}. [Written also {polype}.]
{Fresh-water polyp}, the hydra.
{Polyp stem} (Zo["o]l.), that portion of the stem of a
siphonophore which bears the polypites, or feeding zooids.
From WordNet (r) 1.7 (wn)
polyp
n 1: a small vascular growth on the surface of a mucous membrane
[syn: {polypus}]
2: 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
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