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arthrodire

[ahr-thruh-dahyuh r]
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noun
  1. any of numerous fishes of the extinct order Arthrodira, widely distributed during the Devonian Period, having the anterior part of the body covered by a shield of bony plates.
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Origin of arthrodire

< New Latin Arthrodira, equivalent to arthro- arthro- + -dira < Greek deirḗ neck, throat
Related formsar·thro·di·ran [ahr-thruh-dahy-ruh n] /ˌɑr θrəˈdaɪ rən/, ar·thro·di·rous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018