polychaete

American  

[pol-i-keet] / ˈpɒl ɪˌkit /

noun

1. any annelid of the class Polychaeta, having unsegmented swimming appendages with many setae or bristles.

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adjective

1. Also polychaetous. belonging or pertaining to the Polychaeta.

polychaete British  

/ ˈpɒlɪˌkiːt /

noun

1. 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

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adjective

1. of, relating to, or belonging to the class Polychaeta

polychaete Scientific  

/ pŏl′ĭ-kēt′ /

1. Any of various often brightly colored annelid worms of the class Polychaeta. Each segment of a polychaete has a pair of fleshy appendages that are tipped with bristles (setae), used for swimming or burrowing. Most species of polychaetes live in saltwater, feed on tiny aquatic animals and plants, and range in size from a few millimeters to 3 m (10 ft) in length.

2. Compare oligochaete

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Etymology

Origin of polychaete

1885–90; < New Latin Polychaeta < Greek polychaítēs having much hair. See poly-, chaeta

Example Sentences

So what does this polychaete do with its walloping peepers after dark?

From Science Daily • Apr. 8, 2024

Hemerythrin, a red, iron-containing protein is found in some polychaete worms and annelids and is illustrated in Figure 31.6c.

From Textbooks • Jun. 9, 2022

But this is not the route Ramisyllis and many other syllid polychaete worms took.

From Scientific American • Aug. 8, 2021

The researchers then placed the catfish in aquariums with hidden polychaete worms, their preferred prey.

From New York Times • Jun. 9, 2014

Figure 2: Clustering of Hox genes in Pacific oyster Crassostrea gigas, polychaete annelid Capitella teleta, fruitfly Drosophila melanogaster, lancelet Branchiostoma floridae and Homo sapiens.

From Nature • Oct. 3, 2012