1. 
   Acanthopteri
   Ac`an·thop'ter·i noun plural [ New Latin , from Greek ... thorn + ... wing, fin.] (Zoology) A group of teleostean fishes having spiny fins. See Acanthopterygii .
   Found op http://www.encyclo.co.uk/webster/A/12
   
   
2. 
   acanthopteri
   <zoology> A group of teleostean fishes having spiny fins. See Acanthopterygii. ... Origin: NL, from Gr. Thorn + wing, fin. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?acanthopteri
   
   
3. 
   Acanthopteri
   • (n. pl.) A group of teleostean fishes having spiny fins. See Acanthopterygii.
   Found op http://thinkexist.com/dictionary/meaning/acanthopteri/
   
   

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