What does polype mean?
Polype is a less common spelling of polyp, especially in literary, historical, and taxonomic writing. Its principal zoological meaning is a simple aquatic invertebrate of the cnidarian group, characterized by a tubular body and a mouth surrounded by tentacles. Many polyps live together in colonies, including the animals responsible for building coral reefs, although some are solitary. In medical usage, a polyp is a small, smooth growth that projects from the lining of a body cavity, most often the nasal passage, colon, or another mucous membrane. Neither meaning should be confused with a jellyfish in the ordinary sense, though jellyfish and several related animals do have a free-swimming form in their life cycles called a medusa. For most contemporary contexts, especially medical ones, the standard spelling polyp is clearer and more familiar.
A simple aquatic invertebrate, especially an attached, stalk-bodied cnidarian with a mouth surrounded by tentacles; such organisms may be solitary or colonial.
"A colony of polyps built the limestone reef over many centuries."
In zoological usage, the term emphasizes the attached form in the life cycle of cnidarians, as opposed to the free-swimming medusa.
A small growth projecting from the lining of a body cavity, especially a mucous membrane.
"The scope revealed a benign polyp in the patient's colon."
This sense is normally written polyp in contemporary medical English.
The plural is commonly used for both individual cnidarians and the constituent animals of a colony, as well as for multiple growths in medical contexts.
"Coral polyps rely on algae living in their tissues for much of their energy."
The name comes from Greek for “many-footed,” an apt description of the tentacles surrounding a polyp's mouth.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of polype
The word entered English from French polype and ultimately from Latin polypus, a form of Greek polypous, meaning “many-footed.” Greek polypodes was used for creatures with many feet or tentacles, including the animals now classed among cnidarians. The same terminology was later extended to rounded growths on mucous membranes, and the English form with the silent final e gradually gave way to polyp in most modern usage.
Related word forms
How polype is actually used
Polype is uncommon in everyday modern English, where polyp is normally preferred. The zoological sense refers especially to the stalk-bodied or attached form in the life cycle of cnidarians, as distinguished from the free-swimming medusa form.
Easily confused with polype
Polyp is the standard modern spelling, while polype is chiefly used in literary, historical, or taxonomic contexts.