4  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Disk  \Disk\,  n.  [L.  discus,  Gr  ?.  See  {Dish}.]  [Written  also 
  {disc}.] 
  1.  A  discus;  a  quoit. 
 
  Some  whirl  the  disk,  and  some  the  javelin  dart. 
  --Pope. 
 
  2.  A  flat,  circular  plate;  as  a  disk  of  metal  or  paper. 
 
  3.  (Astron.)  The  circular  figure  of  a  celestial  body,  as  seen 
  projected  of  the  heavens. 
 
  4.  (Biol.)  A  circular  structure  either  in  plants  or  animals; 
  as  a  blood  disk;  germinal  disk,  etc 
 
  5.  (Bot.) 
  a  The  whole  surface  of  a  leaf. 
  b  The  central  part  of  a  radiate  compound  flower,  as  in 
  sunflower. 
  c  A  part  of  the  receptacle  enlarged  or  expanded  under 
  or  around  or  even  on  top  of  the  pistil. 
 
  6.  (Zo["o]l.) 
  a  The  anterior  surface  or  oral  area  of  c[oe]lenterate 
  animals,  as  of  sea  anemones. 
  b  The  lower  side  of  the  body  of  some  invertebrates, 
  especially  when  used  for  locomotion,  when  it  is  often 
  called  a  creeping  disk. 
  c  In  owls,  the  space  around  the  eyes. 
 
  {Disk  engine},  a  form  of  rotary  steam  engine. 
 
  {Disk  shell}  (Zo["o]l.),  any  species  of  Discina. 
 
  From  WordNet  r  1.6  [wn]: 
 
  disk 
  n  1:  something  with  a  round  shape  like  a  flat  circular  plate 
  [syn:  {disc},  {saucer}] 
  2:  a  thin  flat  circular  plate  [syn:  {disc}] 
  3:  a  disc  with  continuous  grooves;  formerly  used  to  reproduce 
  music  by  rotating  as  a  phonograph  needle  tracked  in  the 
  grooves  [syn:  {phonograph  record},  {phonograph  recording}, 
  {record},  {disc},  {platter}] 
  4:  (computer  science)  a  memory  device  consisting  of  a  flat  disk 
  covered  with  a  magnetic  coating  on  which  information  is 
  stored  [syn:  {magnetic  disk},  {magnetic  disc},  {disc}] 
  v  :  draw  a  harrow  over  (land)  [syn:  {harrow}] 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  disk 
 
    1.  {magnetic  disk}. 
 
  2.  {compact  disc}. 
 
  3.  {optical  disk}. 
 
  Note:  the  american  spelling,  "disk",  is  normal  for  most 
  computer  disks  whereas  "compact  disc",  having  come  to 
  computers  via  the  audio  world,  is  correctly  spelled  with  a 
  "c",  indeed,  this  spelling  is  part  of  the  CD  standard. 
 
  (1995-07-30) 
 
 
 
  From  V.E.R.A.  --  Virtual  Entity  of  Relevant  Acronyms  13  March  2001  [vera]: 
 
  DISK 
  Deutschsprachige  Internationale  SAS-benutzer  Konferenz 
 
 

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