Hydranth vs. Polyp — What's the Difference?

A feeding zooid in a hydroid colony having an oral opening surrounded by tentacles.

A body form of a cnidarian, such as a hydra or coral, that is cylindrical in shape, has a mouth usually surrounded by tentacles at one end, and is often attached to something at the other end.

(zoology) An individual polyp of a hydroid colony

A usually nonmalignant growth or tumor protruding from the mucous lining of an organ such as the nose, bladder, or intestine, sometimes causing obstruction.

One of the nutritive zooids of a hydroid colony. Also applied to the proboscis or manubrium of a hydroid medusa. See Illust. of Hydroidea.

(medicine) An abnormal growth protruding from a mucous membrane.

(zoology) A cylindrical coelenterate, such as the hydra, having a mouth surrounded with tentacles.

One of the feeding or nutritive zooids of a hydroid or coral.

A small vascular growth on the surface of a mucous membrane

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