Definition of polyp
1 : a coelenterate (such as a coral) that has typically a hollow cylindrical body closed and attached at one end and opening at the other by a central mouth surrounded by tentacles armed with nematocysts
2 : a growth projecting from a mucous membrane (as of the colon or vocal cords)
polypoidplay \-lə-ˌpȯid\ adjective
Recent Examples of polyp from the Web
The bladder polyp, which looks like a pale blue tooth, stores water and glows in the dark.
When storefront CT scanning machines popped up in the late 1990s, the idea seemed golden to many radiologists and entrepreneurs: Customers could go directly to an imaging center and get an early look at possible tumors or polyps for about $1,000.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polyp'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of polyp
French polype octopus, nasal polyp, from Old French polipe, from Latin polypus, from Greek polypous, from poly- + pous foot — more at foot
First Known Use: 1742
POLYP Defined for English Language Learners
Definition of polyp for English Language Learners
medical : a small lump that grows inside your body (such as inside your colon or on your vocal cords)
: a small sea animal (such as a coral) that has a body shaped like a tube
POLYP Defined for Kids
Definition of polyp for Students
: a small sea animal (as a coral) having a tubelike body closed and attached to something (as a rock) at one end and opening at the other with a mouth surrounded by tentacles
Medical Definition of polyp
: a projecting mass of swollen and hypertrophied or tumorous membrane (as in the nasal cavity or the intestine)—called also polypus
Seen and Heard
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