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Related to polychaete: class Polychaeta


Any of various annelid worms of the class Polychaeta, including mostly marine worms such as the lugworm, and characterized by fleshy paired appendages tipped with bristles on each body segment.

[New Latin Polychaeta, class name, from Greek polukhaitēs, with much hair : polu-, poly- + khaitē, long hair.]

pol′y·chaete′, pol′y·chae′tous adj.
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.


(ˈpɒlɪˌkiːt) or


(Animals) any marine annelid worm of the class Polychaeta, having a distinct head and paired fleshy appendages (parapodia) that bear bristles (chaetae or setae) and are used in swimming: includes the lugworms, ragworms, and sea mice
(Animals) of, relating to, or belonging to the class Polychaeta
[C19: from New Latin, from Greek polukhaitēs: having much hair; see chaeta]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈpɒl ɪˌkit)

1. any of various marine annelid worms of the class Polychaeta, having regularly paired body bristles and often other appendages.
2. Also, pol`y•chae′tous. belonging or pertaining to the Polychaeta.
[1885–90; < New Latin Polychaeta, neuter pl. of polychaetus (with change of declension) < Greek polychaítēs having much hair. See poly-, chaeta]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


Any of various often brightly colored, meat-eating worms that are related to earthworms and leeches and usually live in the ocean. Each segment of a polychaete has a pair of fleshy appendages that are tipped with bristles, used for swimming or burrowing.
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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.polychaete - chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles
annelid, annelid worm, segmented worm - worms with cylindrical bodies segmented both internally and externally
class Polychaeta, Polychaeta - marine annelid worms
lobworm, lugworm, lug - marine worms having a row of tufted gills along each side of the back; often used for fishing bait
sea mouse - any of several large worms having a broad flattened body with a mat of coarse hairs covering the back
bloodworm - a segmented marine worm with bright red body; often used for bait
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
In the eastern Bering Sea, Walleye Pollock (Theragra chalcogramma) and Chionoecetes crabs were the main prey items, with minor contributions from polychaete worms, shrimps, and other crabs (Mito 1974; Brodeur and Livingston 1988).
Researchers found that some species of polychaete worms are able to modify their metabolic rates to better cope with and thrive in waters high in carbon dioxide (CO2), which is otherwise poisonous to other, often closely-related species.
Larvae feed on zooplankton, fish eggs and invertebrates; postlarvae and juveniles consume copepods, nematodes and polychaete worms; and adults consume mostly amphipods, polychaetes, mysid shrimp, and mollusks (Roelofs 1954; Parker 1971; Sheridan 1979; Hodson et al.
(36%) Scoloplos armiger (8%) Laminaria saccharina (16%) Mud Yoldia hyperborea (34%) filamentous green algae Astarte montagui (28%) (49%) Cerianthus Aglaophamus neotenus (25%) borealis (23%) Praxillella gracilis (5%) Coccotylus truncatus (19%) In Gjoa Haven, the most common species among the grab samples were a suspension-feeding bivalve (Astarte montagui), a deposit-feeding bivalve (Yoldia hyperborea), a deposit-feeding polychaete (Scoloplos armiger), and a carnivorous polychaete (Aglaophamus neotenus) (Table 3).
Competition for food between the introduced exotic polychaete Marenzelleria viridis and the resident native amphipod Monoporeia affinis in the Baltic Sea.
Along with the volunteers, members of Northumbria Police, Northumberland Fire and Rescue Service, Northumbria Probation Service, Lynemouth Community Trust, Rio Tinto Alcan, Lynemouth Parish Council and Shoreline Polychaete Farms also took part.
As it turns out, there is another segmented marine worm, or polychaete, that haunts Florida's waters.
Polychaete Associations in a Subtropical Environment (Sao Sebastiao Channel, Brazil): A Structural Analysis.
It supports a rich invertebrate fauna, mainly consisting of polychaete worms, mollusks, and brachyuran crabs.
The diet of Cynoscion regalis was primarily fish, mysids, and decapod shrimp while that of Micropogonias undulatus was dominated by polychaete worms with mysids and other epibenthic fauna present in varying amounts.