- any of various cnidarians, colonial or individual, having a mouth fringed with many small, slender tentacles bearing stinging cells at the top of a tubelike body, as the sea anemone or hydra
- a smooth projecting growth of hypertrophied mucous membrane in the nasal passages, bladder, rectum, etc.
Origin of polypFrench polype from Classical Latin polypus from Classical Greek polypous from poly-, poly- + pous, foot
- 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.
- A usually nonmalignant growth or tumor protruding from the mucous lining of an organ such as the nose, bladder, or intestine, sometimes causing obstruction.
Origin of polypMiddle English polip nasal tumor from Old French polipe from Latin pōlypus cuttlefish, nasal tumor from Greek polupous, poulupous polu- poly- pous foot ; see ped- in Indo-European roots.
pedunculate polyp (top) and sessile polyp (bottom) in a section of large intestine