polyp(redirected from Acquired polyps)
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pedunculate polyp (top) and sessile polyp (bottom) in a section of large intestine
1. 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.
2. A usually nonmalignant growth or tumor protruding from the mucous lining of an organ such as the nose, bladder, or intestine, sometimes causing obstruction.
[Middle 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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Zoology) zoology one of the two forms of individual that occur in coelenterates. It usually has a hollow cylindrical body with a ring of tentacles around the mouth. Compare medusa2
2. (Pathology) pathol Also called: polypus a small vascularized growth arising from the surface of a mucous membrane, having a rounded base or a stalklike projection
[C16 polip, from French polype nasal polyp, from Latin pōlypus sea animal, nasal polyp, from Greek polupous having many feet]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. the cylindrical body form in the life cycle of a jellyfish, sea anemone, or other cnidarian, having stinging tentacles around the mouth and usu. having the opposite end attached to a surface. Compare medusa.
2. the individual zooid of a colonial organism, as the bryozoan.
3. a projecting growth from a mucous surface, as of the nose, being either a tumor or a hypertrophy of the mucous membrane.
[1350–1400; Middle English polip, short for polipus nasal tumor < Medieval Latin, Latin pōlypus < dial. Greek poulýpous octopus, nasal tumor (Attic polýpous, genitive polýpodos; see poly-, -pod)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
A cnidarian in its sedentary stage. Polyps have hollow, tube-shaped bodies with a central mouth on top surrounded by tentacles. Some cnidarians, such as corals and sea anemones, only exist as polyps, while others turn into medusas as adults or lack a polyp stage completely. Compare medusa.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A tissue growth projecting from the skin or mucous membrane, such as inside the nose.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
Switch to new thesaurus
|Noun||1.||polyp - a small vascular growth on the surface of a mucous membrane|
growth - (pathology) an abnormal proliferation of tissue (as in a tumor)
adenomatous polyp - a polyp that consists of benign neoplastic tissue derived from glandular epithelium; "adenomatous polyps are visible protrusions that can develop on the mucosal surface of the colon or rectum"
sessile polyp - a relatively flat polyp
pedunculated polyp - a polyp with a stalk or peduncle
|2.||polyp - one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth; "in some species of coelenterate, polyps are a phase in the life cycle that alternates with a medusoid phase"|
Cnidaria, Coelenterata, phylum Cnidaria, phylum Coelenterata - hydras; polyps; jellyfishes; sea anemones; corals
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
polyp[ˈpɒlɪp] N (Med) → pólipo m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
polyp[ˈpɒlɪp] n → polype m
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
n → Polyp m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
polyp[ˈpɒlɪp] n (Zool, Med) → polipo
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
n. pólipo, cualquier protuberancia o bulto que se desarrolla de una membrana mucosa.
English-Spanish Medical Dictionary © Farlex 2012
polypn pólipo; adenomatous — pólipo adenomatoso; hyperplastic — pólipo hiperplásico; juvenile — pólipo juvenil; nasal — pólipo nasal
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.