1. 
   Quinquivalent
   Quin·quiv'a·lent adjective [ Quinque- + Latin valens , -entis , present participle See Valence .] (Chemistry) Same as Pentavalent .
   Found op http://www.encyclo.co.uk/webster/Q/12
   
   
2. 
   quinquivalent
   <chemistry> Same as Pentavalent. ... Origin: Quinque- + L. Valens, -entis, p. Pr. See Valence. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?quinquivalent
   
   
3. 
   Quinquivalent
   • (a.) Same as Pentavalent.
   Found op http://thinkexist.com/dictionary/meaning/quinquivalent/
   
   

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