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agnathous

American  
[ag-nuh-thuhs] / ˈæg nə θəs /
Also agnathic.

adjective

Zoology.
  1. having no jaws.

  2. belonging or pertaining to the class Agnatha.


agnathous British  
/ æɡˈneɪθəs /

adjective

  1. zoology (esp of lampreys and hagfishes) lacking jaws

"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

Etymology

Origin of agnathous

First recorded in 1875–80; Agnatha, -ous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A similar history must have been slowly brought about when this second mandibulate somite in its turn became agnathous and passed in front of the mouth.

From Project Gutenberg

Agnathous: without jaws; specifically applied to those Neuropteroid series in which the mouth structures are obsolescent.

From Project Gutenberg