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gnathostomata

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gnathostomata


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Gnathostoma  \Gna*thos"to*ma\,  n.  pl  [NL.,  from  Gr  ?  the  jaw  + 
  ?,  ?,  the  mouth.]  (Zo["o]l.) 
  A  comprehensive  division  of  vertebrates,  including  all  that 
  have  distinct  jaws,  in  contrast  with  the  leptocardians  and 
  marsipobranchs  (Cyclostoma),  which  lack  them  [Written  also 
  {Gnathostomata}.] 
 
  From  WordNet  r  1.6  [wn]: 
 
  Gnathostomata 
  n  :  comprising  all  vertebrates  with  upper  and  lower  jaws  [syn:  {Gnathostomata}, 
  {superclass  Gnathostomata}] 




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