What does polypus mean?
A polypus is an uncommon name for a polyp. In its principal zoological sense, it describes a small aquatic animal with a tubular body, a mouth surrounded by tentacles, and a base attached to rocks, coral, or other surfaces. Many such animals live together as colonies. The word can also denote a stalked or sessile growth occurring on a mucous membrane, as in the nose or colon, although “polyp” is the usual medical term. Today, “polypus” is encountered chiefly in formal, scientific, historical, or literary writing; in everyday use, the shorter and more familiar form “polyp” is preferred. Its unusual name has a vivid origin: it comes from the Greek polypous, meaning “many-footed,” referring to the numerous tentacles surrounding the animal's mouth.
nounAn uncommon synonym for a polyp, especially a small aquatic animal with a tubular body and a mouth surrounded by tentacles. In medical usage, it may also refer to a stalked or sessile growth in a mucous membrane.
- A small aquatic invertebrate with a simple tubular body, usually attached to a surface and surrounded by tentacles.
- A stalked or sessile growth arising from a mucous membrane, especially in the nose, colon, or uterus.
"A small polypus attached itself to the rock beneath the shallow water."
"The coral colony consists of thousands of polyps joined by a shared skeleton."
"The surgeon removed a nasal polypus from the patient's left nostril."
“Polyps” is the standard plural; “polypuses” is also possible but less common.
"The polyps spread across the reef and formed a dense colony."
The name comes from Greek polypous, meaning “many-footed,” a fitting description of an animal whose tentacles radiate from one central mouth.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does polypus come from?
The word comes through New Latin and Latin from Greek polypous, an adjective meaning “many-footed.” Its application to tentacled aquatic animals predates its use for abnormal growths on mucous membranes. The modern form “polyp” derives from the same Greek family, while “polypus” preserves the older Latinized shape.
How polypus is actually used
The standard modern word is usually “polyp.” “Polypus” is less common and may sound literary, historical, or technical, especially in zoological contexts.