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Related to Polychaete worms: 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.


(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]


(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]


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.
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
References in periodicals archive ?
The consumption of soft-bodied prey, such as polychaete worms, was not influenced by claw loss.
It will focus on the group of predominantly deep-sea polychaete worms from the subfamily Hyalinoeciinae with worldwide distribution, remarkable diversity at great depths, and possible progenetic origin.
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.
The croaker had a more pronounced ontogenetic diet shift, with the smallest size classes (10-25 mm) consuming mostly copepods, and larger juveniles having diets dominated by amphipods, polychaete worms, shrimp, crabs, and fish.
Ravens inhabiting some coastal areas are afforded many opportunities to capture intertidal invertebrates; coastal ravens at times supplement their vertebrate diet with a variety of invertebrates, including polychaete worms, echinoderms, mollusks, and crustaceans, as well as coralline algae and sea weeds (Bent 1946, Ewins et al.
Polychaete worms These marine relatives of earthworms and leeches come in a variety of forms.
Without suitable habitats or prey choices, polychaete worms didn't have a chance.
These polychaete worms are marine and locally abundant but are rarely seen because they spend most of the year burrowed in the coral reefs.
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.
The company operates the world's first temperate marine worm farm using waste heat-energy from Alcan to breed and grow premium-quality polychaete worms.