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blackhead

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blackhead


  4  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
 
 
  2.  (Zo["o]l.)  A  scaup  duck.  See  below. 
 
  {Scaup  duck}  (Zo["o]l.),  any  one  of  several  species  of 
  northern  ducks  of  the  genus  {Aythya},  or  {Fuligula}.  The 
  adult  males  are  in  large  part  black.  The  three  North 
  American  species  are:  the  greater  scaup  duck  ({Aythya 
  marila},  var.  nearctica),  called  also  {broadbill}, 
  {bluebill},  {blackhead},  {flock  duck},  {flocking  fowl}, 
  and  {raft  duck};  the  lesser  scaup  duck  ({A.  affinis}), 
  called  also  {little  bluebill},  {river  broadbill},  and 
  {shuffler};  the  tufted,  or  ring-necked,  scaup  duck  ({A. 
  collaris}),  called  also  {black  jack},  {ringneck}, 
  {ringbill},  {ringbill  shuffler},  etc  See  Illust..  of 
  {Ring-necked  duck},  under  {Ring-necked}.  The  common 
  European  scaup,  or  mussel,  duck  ({A.  marila}),  closely 
  resembles  the  American  variety. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Blackhead  \Black"head`\,  n.  (Zo["o]l.) 
  The  scaup  duck. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Broadbill  \Broad"bill`\,  n. 
  1.  (Zo["o]l.)  A  wild  duck  ({Aythya,  or  Fuligula  marila)}, 
  which  appears  in  large  numbers  on  the  eastern  coast  of  the 
  United  States,  in  autumn;  --  called  also  {bluebill}, 
  {blackhead},  {raft  duck},  and  {scaup  duck}.  See  {Scaup 
  duck}. 
 
  2.  (Zo["o]l.)  The  shoveler.  See  {Shoveler}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  blackhead 
  n  :  a  black-tipped  plug  clogging  a  pore  of  the  skin  [syn:  {comedo}] 




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