1. 
   Multi-valve
   In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and can operate at higher revolutions per minute (RPM) than a two-valve engine, delivering more power. == Multi-valve rationale == ==== Multi-v...
   Found op http://en.wikipedia.org/wiki/Multi-valve
   
   
2. 
   Multivalve
   Mul'ti·valve noun [ Confer French multivalve .] (Zoology) Any mollusk which has a shell composed of more than two pieces.
   Found op http://www.encyclo.co.uk/webster/M/115
   
   
3. 
   multivalve
   <marine biology, zoology> Any mollusk which has a shell composed of more than two pieces. ... Origin: Cf. F. Multivalve. ... (19 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?multivalve
   
   
4. 
   Multivalve
   • (a.) Alt. of Multivalvular • (n.) Any mollusk which has a shell composed of more than two pieces.
   Found op http://thinkexist.com/dictionary/meaning/multivalve/
   
   

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