| 单词 | arthrodire | 
| 释义 | arthrodire in American English (ˈɑːrθrəˌdaiᵊr) noun 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  Derived forms arthrodiran (ˌɑːrθrəˈdairən) or arthrodirous adjective Word origin  [‹ NL Arthrodira, equiv. to arthro- arthro- + -dira ‹ Gk deire᷄ neck, throat] | 
	
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