cyclostome

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

adjective

belonging or pertaining to the Cyclostomata, a subclass of jawless, eellike, marine vertebrates of the class Agnatha, comprising the lampreys and hagfishes.
having a circular mouth.

noun

a cyclostome vertebrate; a lamprey or hagfish.

Origin of cyclostome

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for cyclostome

Historical Examples of cyclostome

In the amphioxus, as has been said, the cranio-spinal axis alone exists; the Cyclostome fishes are but a step higher.
History of the Intellectual Development of Europe, Volume II (of 2)
John William Draper
The cyclostome fishes have, so far, been discovered only in Scotland, in the tiny Palaeospondylus.
Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3
Various

British Dictionary definitions for cyclostome

cyclostome

noun

any primitive aquatic jawless vertebrate of the class Cyclostomata, such as the lamprey and hagfish, having a round sucking mouth and pouchlike gills

adjective

of, relating to, or belonging to the class Cyclostomata

Also called: marsipobranch

Derived Formscyclostomate (saɪˈklɒstəmɪt, -ˌmeɪt) or 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

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.