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agnathan

[ag-nuh-thuh n] /ˈæg nə θən/
noun
1.
any member of the vertebrate class Agnatha.
adjective
2.
Origin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for agnathan

agnathan

/æɡˈneɪθən/
noun
1.
any jawless eel-like aquatic vertebrate of the superclass Agnatha, which includes the lampreys and hagfishes
adjective
2.
of, relating to, or belonging to the superclass Agnatha See also cyclostome
Word Origin
C19: from New Latin agnatha, from a-1 + Greek gnathos jaw
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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agnathan in Science
agnathan
  (āg'nə-thən)   
Adjective  Lacking a jaw.

Noun  See jawless fish.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for agnathan

any of the class Agnatha of primitive, jawless fishes that includes the lampreys and hagfishes (order Cyclostomata), as well as extinct groups

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