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Topics related to "polyp"

polyp
polyp in medicine, a benign tumor occurring in areas lined with mucous membrane such as the nose, gastrointestinal tract (especially the colon), and the uterus. Some polyps are pedunculated tumors, i.e., they grow on stems; others, attached by a broad base, are called sessile. Nasal polyps are usua... Read more
polyp and medusa
polyp and medusa names for the two body forms, one nonmotile and one typically free swimming, found in the aquatic invertebrate phylum Cnidaria (the coelenterates). Some animals of this group are always polyps, some are always medusae, and some exhibit both a polyp and a medusa stage in their lif... Read more
sea fan
sea fan colonial marine animal forming erect, flattened, branching colonies in tropical and subtropical waters. Colonies may be several feet high and are often colorful, with purples, reds, and yellows predominating. The individuals, or polyps (see polyp and medusa ), have eight feathery tentacles... Read more
sea pen
sea pen long, slender colonial organism of the same phylum as the jellyfish. Sea pen colonies are formed by several genera of the order Pennatulacea. The colony consists of a stalk formed by an organism called a primary polyp (see polyp and medusa ) and short branches formed by secondary polyps. T... Read more
coral
coral small, sedentary marine animal, related to the sea anemone but characterized by a skeleton of horny or calcareous material. The skeleton itself is also called coral. Although most corals form colonies by budding, there are some solitary corals; in both types the individual animals, called pol... Read more
sea anemone
sea anemone , any of the relatively large, predominantly solitary polyps (see polyp and medusa ) of the class Anthozoa, phylum Cnidaria. Unlike the closely related corals, these organisms do not have a skeleton. Sea anemones occur everywhere in the oceans, at all depths, but are particularly abunda... Read more
Cnidaria
Cnidaria or Coelenterata , phylum of invertebrate animals comprising the sea anemones , corals , jellyfish , and hydroids. Cnidarians are radially symmetrical (see symmetry, biological ). The mouth, located at the center of one end of the body, opens into a gastrovascular cavity, which is us... Read more
jellyfish
jellyfish common name for the free-swimming stage (see polyp and medusa ), of certain invertebrate animals of the phylum Cnidaria (the coelenterates). The body of a jellyfish is shaped like a bell or umbrella, with a clear, jellylike material filling most of the space between the upper and lower... Read more
parrotfish
parrotfish common name for a member of the large family Scaridae, colorful reef fishes of warm seas, resembling the wrasses but of a larger size. Parrotfishes, also called pollyfishes, are so named for their powerful cutting-edged beaks, formed of fused incisorlike jaw teeth. With these they scra... Read more
cystic fibrosis
cystic fibrosis , inherited disorder of the exocrine glands (see gland ), affecting children and young people; median survival is 25 years in females and 30 years in males. It is caused by a genetic abnormality in the CF transmembrane conductance regulator (CFTR) gene that results in the disruption... Read more

Encyclopedia entries related to "polyp"

polyp and medusa
Book article from: The Columbia Encyclopedia, Sixth Edition polyp and medusa names for the two body forms, one nonmotile and...polyps, some are always medusae, and some exhibit both a polyp and a medusa stage in their life cycle. The polyp is a sessile, or nonmotile, organism; well-known solitary...
polyp
Book article from: World Encyclopedia polyp In medicine, swollen mass projecting from the wall of a cavity lined with mucous membrane, such as the nose. Some growths can be cancerous.
corals and related fossils
Book article from: The Oxford Companion to the Earth ...generations in which two body forms, the polyp and the medusa alternate (Fig. 1a...marine and freshwater cnidaria in which the polyp stage dominates; however, they only rarely...of a cylinder or cone, secreted by the polyp, which inhabits the upper part (Fig...
Intestinal Polyps
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed. Intestinal Polyps Definition The word polyp refers to any overgrowth of tissue from...of inside an organ it is often called a polyp. Cancer is another type of neoplasm marked...Location of intestinal polyps The chances of a polyp's becoming cancerous depend to some extent...
jellyfish
Book article from: The Columbia Encyclopedia, Sixth Edition ...name for the free-swimming stage (see polyp and medusa ), of certain invertebrate...simple sense organs. In this group the polyp, or attached stage, is often larger and...the medusa is the prominent form and the polyp is reduced to a small larval stage. Scyphozoan...
Vocal Cord Nodules and Polyps
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed. ...short time may also produce polyps. A polyp is a soft, smooth lump containing mostly...blood vessels. A nodule is similar to a polyp, but tends to be firmer. Causes and symptoms...producing sounds. A biopsy of a nodule or polyp will ensure they are not cancerous. Treatment...
Jellyfish
Encyclopedia entry from: The Gale Encyclopedia of Science ...settle on a surface, such as a rock, and turn into a polyp (a hollow cylinder with tentacles and a mouth at one...century warship) is a colony composed of four kinds of polyp. The main polyp is a gas-filled float that measures up to 12 in...
Coral Reef
Encyclopedia entry from: U*X*L Encyclopedia of Landforms and Other Geologic Features ...anemones and jellyfish. In fact, a coral polyp looks similar to an anemone: it is a jellylike...tentacles (or a multiple of six), which the polyp extends at night to feed. The size of...separated from it by a lagoon. Coral polyp: A small, invertebrate marine animal...
coral
Book article from: The Columbia Encyclopedia, Sixth Edition ...or true corals (Madreporaria), each polyp secretes a cup-shaped skeleton, the...colonies may be enormous. The body of each polyp is saclike, consisting of a wall of jellylike...particles imbedded in the body wall. Each polyp of a soft coral has eight tentacles. Among...
coral reefs
Book article from: The Oxford Companion to the Earth ...algae. One of the major constituents of a polyp is calcium bicarbonate, which is broken...photosynthesis, produce metabolites that feed the polyp. The process of extracting carbonic acid...reaction above is precipitated around the polyp, where it forms a variety of calcareous...

Dictionary entries related to "polyp"

polyp
Book article from: A Dictionary of Ecology polyp The soft-bodied, usually sedentary form of Cnidaria, consisting of a cylindrical trunk which is fixed at one end, with the mouth surrounded by tentacles at the other end. In Siphonophora the polyp has been modified for a pelagic , colonial existence.
juvenile polyp
Book article from: A Dictionary of Nursing juvenile polyp n. see polyp .
Pennatulacea
Book article from: A Dictionary of Zoology ...subclass Octocorallia ) An order of colonial octocorals that have an elongate primary polyp embedded in mud on the sea-bottom. The distal end of the primary polyp bears secondary polyps, usually on lateral branches. The polyps are supported by...
Kleinenberg, Nicolaus (Nicolai)
Dictionary entry from: Complete Dictionary of Scientific Biography ...prepared his dissertation, on the development of the freshwater polyp. He received his doctorate in 1871, having passed the oral...detailed investigation of the development of the freshwater polyp, to Haeckel. In it he also took up the then very important...
polypectomy
Book article from: A Dictionary of Nursing polypectomy (poli- pek -tŏmi) n. the surgical removal of a polyp. The technique used depends upon the site and size of the polyp, but it is often done by cutting across the base using a wire loop (snare) through which is passed a coagulating diathermy current.
Baker, Henry
Dictionary entry from: Complete Dictionary of Scientific Biography ...included in his books on microscopy. In 1742 there was considerable interest among fellows of the Royal Society in the freshwater polyp(Hydra viridis)as a result of the recent discovery and description of this animal by Abraham Trembley, and with Martin Folkes...
siphonozoid
Book article from: A Dictionary of Zoology siphonozoid In some Anthozoa , a polyp that generates water currents.
corallite
Book article from: A Dictionary of Zoology corallite The skeleton formed by an individual coral polyp , which may be either solitary or part of a colony.
Cnidaria
Book article from: A Dictionary of Earth Sciences ...composed of two layers of cells separated by a gelatinous mass (the mesogloea). There are two basic body shapes, the sessile polyp (e.g. sea anemones, corals) or the free-swimming medusa (e.g. jellyfish). The mouth is surrounded by tentacles...
calyx
Book article from: The Oxford Pocket Dictionary of Current English ...x220E;  a portion of the pelvis of a mammalian kidney. ∎  the cavity in a calcareous coral skeleton that surrounds the polyp. ∎  the plated body of a crinoid, excluding the stalk and arms.

Thesaurus entries related to "polyp"

growth
Book article from: The Oxford American Writers Thesaurus ...advancement, headway, spread; rise, success, boom, upturn, upswing. antonyms: failure, decline.   4. a growth on his jaw synonyms : tumor, malignancy, cancer; lump, excrescence, outgrowth, swelling, nodule; cyst, polyp.
cyst
Book article from: The Oxford American Writers Thesaurus cyst • noun  a benign tumor under his left knee synonyms : growth, lump; abscess, wen, boil, carbuncle, polyp, humor.

Related newspaper, magazine, and trade journal articles from HighBeam Research

Prolapsing anterior urethral polyp.(Disease/Disorder overview)
Magazine article from: Indian Journal of Urology; 4/1/2006; ; 700+ words ; ...second case of prolapsing anterior urethral polyp, which was diagnosed on urethral ultrasonography...one case of prolapsing anterior urethral polyp has been reported so far.[1] Herein...report of such a case of anterior urethral polyp, which prolapsed through the urethral...
Effect of colony size, polyp size, and budding mode on egg production in colonial coral.
Magazine article from: The Biological Bulletin; 12/1/1998; ; 700+ words ; ...A coral colony is usually derived from a single polyp by budding, so that the polyps in the colony are...the size of a coral has another aspect, i.e., polyp size. Although the polyp is the basic unit for physiological activities...
Dysphagia caused by a fibrovascular polyp: a case report.(Case Report)(Case study)
Magazine article from: Cases Journal; 11/19/2008; ; 700+ words ; ...seldom dysphagia is caused by a benign polyp, which protrudes in the esophagus.Case...half of the esophageal circumference. The polyp was attached to the hypopharynx on the...findings were suggestive for a fibrovascular polyp. In order to remove the polyp, the patient...
Endoscopic view of a sphenochoanal polyp.
Magazine article from: Ear, Nose and Throat Journal; 8/1/2000; ; 700+ words ; ...entire nasopharynx and suggested that a choanal polyp might be emanating from the left side. Adenoid...of the nasopharynx by a large sphenochoanal polyp (figure, C). The superior portion of the polyp was traced to the left sphenoid ostium. Resection...
Sphenochoanal polyp presenting with concomitant nasal polyps.
Magazine article from: Ear, Nose and Throat Journal; 1/1/2007; ; 700+ words ; Abstract A sphenochoanal polyp is a rare lesion that originates in the...first reported case of a sphenochoanal polyp associated with concomitant nasal polyps...presence of a massive left sphenochoanal polyp and bilateral grade III anterior and...
Case report of a mass that mimicked an antrochoanal polyp.(Brief Article)
Magazine article from: Ear, Nose and Throat Journal; 8/1/1999; ; 700+ words ; ...originally diagnosed with an antrochoanal polyp. During avulsion of the mass by endoscopic...it was discovered that the stalk of the polyp actually arose from the mucosa of the right...maxillary ant rum. A diagnosis of choanal polyp was made. Case report A 37-year-old...
Endoscopic removal of the antral and choanal portions of an antrochoanal polyp.(RHINOSCOPIC CLINIC)
Magazine article from: Ear, Nose and Throat Journal; 4/1/2005; ; 700+ words ; ...excision of a presumed left antrochoanal polyp. Following correction of the severely...telescope clearly revealed a large antrochoanal polyp emanating from an accessory ostium of the...sinus (figure, B). The stalk of this polyp was transected at a point medial to the...
Endoscopic Removal of a Giant Fibrovascular Polyp of the Esophagus
Magazine article from: The Annals of Otology, Rhinology & Laryngology; 8/1/2008; ; 700+ words ; ...Asphyxiation from aspiration of the regurgitated polyp is a well-described cause of death...endoscopie removal of a giant fibrovascular polyp of the esophagus. Results: A 63-year...demonstrated a 10-cm giant fibrovascular polyp originating just below the cricoid cartilage...
Giant fibrovascular polyp of the esophagus: A lesion causing upper airway obstruction and syncope
Magazine article from: Archives of Pathology & Laboratory Medicine; 4/1/2003; ; 700+ words ; * Giant fibrovascular polyp of the esophagus is a rare but dramatic...that were associated with a fibrovascular polyp protruding into the mouth. He had also...resection of an 11.8-cm fibrovascular polyp and an endoscopic resection of a second...
Sphenochoanal polyp: an endoscopic view.(RHINOSCOPIC CLINIC)
Magazine article from: Ear, Nose and Throat Journal; 1/1/2007; ; 700+ words ; ...posterior choana (figure 1). The stalk of the polyp was communicating with the fight sphenoid ostium...on the right, suggesting an inflamed mucosal polyp (figure 2). The hyperintense mucosal polyp was also seen posteriorly in the right nasal...