cyclostome

Dictionary: cy·clo·stome (sī'klə-stōm') pronunciation

n.
Any of various primitive eellike vertebrates of the class Agnatha, such as a lamprey, lacking jaws and true teeth and having a circular, sucking mouth.

[From New Latin Cyclostomī and Cyclostomata, class names : CYCLO- + Greek stoma, stomat-, mouth.]

cyclostomate cy·clos'to·mate' (sī-klŏs'tə-māt', -mĭt) or cy'clo·stom'a·tous (sī'klə-stŏm'ə-təs, -stō'mə-) adj.

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Columbia Encyclopedia: cyclostome

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cyclostome (sī'kləstōm'), jawless fish, member of the Cyclostomata, the only living order of the vertebrate class Agnatha (see Chordata). This group includes the hagfish and the lamprey. The name also applies to members of the order Cyclostomata of the invertebrate phylum Ectoprocta, class Gymnolaemata.

WordNet: cyclostome

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Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: primitive aquatic vertebrate

Wikipedia: Cyclostome

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Cyclostome is a biological term (from the Greek for "round mouth") used in two different senses:

for the taxon Cyclostomata, which comprises the extant jawless fishes: the hagfish (Myxini) and the lampreys (Petromyzontidae). This was thought for a time to be a paraphyletic group and this usage of the term was deprecated by some. However, there also is recent molecular evidence for cyclostome monophyly, and thus the term remains in use.
for the Order Cyclostomatida of bryozoans, tiny animals that live in colonies and form large calcitic skeletons

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	Cyclostomata (Bryozoa)
	hagfish (fish)
	lamprey (fish)

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		Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more
		Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/. Read more
		WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more
		Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Cyclostome". Read more