1. 
   Pteroceras
   Pte·roc'e·ras noun [ New Latin , from Greek ... a wing + ... a horn.] (Zoology) A genus of large marine gastropods having the outer border of the lip divided into lobes; -- called also scorpion shell .
   Found op http://www.encyclo.co.uk/webster/P/188
   
   
2. 
   pteroceras
   <zoology> A genus of large marine gastropods having the outer border of the lip divided into lobes. ... Synonym: scorpion shell. ... Origin: NL, fr. Gr. A wing + a horn. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?pteroceras
   
   
3. 
   Pteroceras
   • (n.) A genus of large marine gastropods having the outer border of the lip divided into lobes; -- called also scorpion shell.
   Found op http://thinkexist.com/dictionary/meaning/pteroceras/
   
   
4. 
   Pteroceras
   Pteroceras is a genus of flowering plants from the orchid family, Orchidaceae. ...
   Found op http://en.wikipedia.org/wiki/Pteroceras
   
   

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