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hydrozoa

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hydrozoa


  4  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  {Molluscoidea},  including  Brachiopoda  and  Bryozoa.  {Mollusca}, 
  including  Cephalopoda,  Gastropoda,  Pteropoda,  Scaphopoda, 
  Lamellibranchiata  or  Acephala.  {Echinodermata},  including 
  Holothurioidea,  Echinoidea,  Asterioidea,  Ophiuroidea,  and 
  Crinoidea.  {C[oe]lenterata},  including  {Anthozoa}  or  {Polyps}, 
  {Ctenophora},  and  {Hydrozoa}  or  Acalephs.  {Spongiozoa}  or 
  {Porifera},  including  the  sponges. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Hydrozoa  \Hy`dro*zo"a\,  n.  pl  [NL.,  fr  E.  hydra  +  Gr  ?  an 
  animal.]  (Zo["o]l.) 
  The  Acaleph[ae];  one  of  the  classes  of  c[oe]lenterates, 
  including  the  Hydroidea,  Discophora,  and  Siphonophora. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Hydrozoon  \Hy`dro*zo"["o]n\,  n.;  pl  L.  {Hydrozoa},  E. 
  {Hydrozo["o]ns}.  [NL.]  (Zo["o]l.) 
  One  of  the  Hydrozoa. 
 
  From  WordNet  r  1.6  [wn]: 
 
  Hydrozoa 
  n  :  coelenterates  typically  having  alternation  of  generations; 
  hydroid  phase  is  usually  colonial  giving  rise  to  the 
  medusoid  phase  by  budding:  hydras  and  jellyfishes  [syn:  {Hydrozoa}, 
  {class  Hydrozoa}] 




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