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cyclostome

[sahy-kluh-stohm, sik-luh-] /ˈsaɪ kləˌstoʊm, ˈsɪk lə-/
adjective
1.
belonging or pertaining to the Cyclostomata, a subclass of jawless, eellike, marine vertebrates of the class Agnatha, comprising the lampreys and hagfishes.
2.
having a circular mouth.
noun
3.
a cyclostome vertebrate; a lamprey or hagfish.
Origin
1825-1835
1825-35; cyclo- + -stome
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for cyclostome

cyclostome

/ˈsaɪkləˌstəʊm; ˈsɪk-/
noun
1.
any primitive aquatic jawless vertebrate of the class Cyclostomata, such as the lamprey and hagfish, having a round sucking mouth and pouchlike gills
adjective
2.
of, relating to, or belonging to the class Cyclostomata
Also called marsipobranch
Derived Forms
cyclostomate (saɪˈklɒstəmɪt; -ˌmeɪt), cyclostomatous (ˌsaɪkləʊˈstɒmətəs; -ˈstəʊmə-; ˌsɪk-) adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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cyclostome in Science
cyclostome
  (sī'klə-stōm')   
Any of various jawless fish of the order Cyclostomata, having a long, eellike body without scales, a cartilaginous skeleton, and a disklike mouth used for sucking juices from prey. Cyclostomes include the hagfish and lampreys, although some scientists classify these two groups as separate orders.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for cyclostome

any member of the order Cyclostomata (class Agnatha), which contains the lamprey and the hagfish (qq.v.). These fish are characterized by a long slender body without scales and fins, a sucking mouth with horny teeth, a cartilaginous skull, and a notochord.

Learn more about cyclostome with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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