2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Penguin  \Pen"guin\,  n.  [Perh.  orig.  the  name  of  another  bird, 
  and  fr  W.  pen  head  +  gwyn  white;  or  perh.  from  a  native 
  South  American  name.] 
  1.  (Zo["o]l.)  Any  bird  of  the  order  Impennes,  or  Ptilopteri. 
  They  are  covered  with  short,  thick  feathers,  almost 
  scalelike  on  the  wings,  which  are  without  true  quills. 
  They  are  unable  to  fly,  but  use  their  wings  to  aid  in 
  diving,  in  which  they  are  very  expert.  See  {King  penguin}, 
  under  {Jackass}. 
 
  Note:  Penguins  are  found  in  the  south  temperate  and  antarctic 
  regions.  The  king  penguins  ({Aptenodytes  Patachonica}, 
  and  {A.  longirostris})  are  the  largest;  the  jackass 
  penguins  ({Spheniscus})  and  the  rock  hoppers 
  ({Catarractes})  congregate  in  large  numbers  at  their 
  breeding  grounds. 
 
  2.  (Bot.)  The  egg-shaped  fleshy  fruit  of  a  West  Indian  plant 
  ({Bromelia  Pinguin})  of  the  Pineapple  family;  also  the 
  plant  itself  which  has  rigid,  pointed,  and  spiny-toothed 
  leaves,  and  is  used  for  hedges.  [Written  also  {pinguin}.] 
 
  {Arctic  penguin}  (Zo["o]l.),  the  great  auk.  See  {Auk}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  penguin 
  n  :  short-legged  flightless  birds  of  cold  southern  esp. 
  Antarctic  regions  having  webbed  feet  and  wings  modified 
  as  flippers 

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