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bivalve

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bivalve


  4  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Bivalve  \Bi"valve\,  a.  [Pref.  bi-  +  valve.]  (Zo["o]l.  &  Bot.) 
  Having  two  shells  or  valves  which  open  and  shut,  as  the 
  oyster  and  certain  seed  vessels. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Bivalve  \Bi"valve\,  n.  [F.  bivalve;  bi-  (L.  bis)  +  valve  valve.] 
  1.  (Zo["o]l.)  A  mollusk  having  a  shell  consisting  of  two 
  lateral  plates  or  valves  joined  together  by  an  elastic 
  ligament  at  the  hinge,  which  is  usually  strengthened  by 
  prominences  called  teeth.  The  shell  is  closed  by  the 
  contraction  of  two  transverse  muscles  attached  to  the 
  inner  surface,  as  in  the  clam,  --  or  by  one  as  in  the 
  oyster.  See  Mollusca. 
 
  2.  (Bot.)  A  pericarp  in  which  the  seed  case  opens  or  splits 
  into  two  parts  or  valves. 
 
  From  WordNet  r  1.6  [wn]: 
 
  bivalve 
  adj  :  (zoology)  used  of  mollusks  having  two  shells  (as  clams  etc.) 
  [syn:  {bivalved}]  [ant:  {univalve}] 
  n  :  marine  or  freshwater  mollusks  having  a  soft  body  with 
  platelike  gills  enclosed  within  two  shells  hinged 
  together  [syn:  {pelecypod},  {lamellibranch}] 
 
  From  U.S.  Gazetteer  (1990)  [gazetteer]: 
 
  Bivalve,  MD 
  Zip  code(s):  21814 




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