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cyclostome

[ sahy-kluh-stohm, sik-luh- ]

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

  1. a cyclostome vertebrate; a lamprey or hagfish.

cyclostome

/ saɪˈklɒstəmɪt; ˈsɪk-; ˌsɪk-; ˌsaɪkləʊˈstɒmətəs; ˈsaɪkləˌstəʊm; -ˈstəʊmə-; -ˌmeɪt /

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
“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


adjective

  1. of, relating to, or belonging to the class Cyclostomata
“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

cyclostome

/ klə-stōm′ /

  1. 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.


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Derived Forms

  • cyclostomate, adjective
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Word History and Origins

Origin of cyclostome1

First recorded in 1825–35; cyclo- + -stome
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Example Sentences

In the amphioxus, as has been said, the cranio-spinal axis alone exists; the Cyclostome fishes are but a step higher.

The cyclostome fishes have, so far, been discovered only in Scotland, in the tiny Palaeospondylus.

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cyclostomatouscyclostrophic