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incidence

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incidence

 

  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Angle  \An"gle\  ([a^][ng]"g'l),  n.  [F.  angle,  L.  angulus  angle, 
  corner;  akin  to  uncus  hook,  Gr  'agky`los  bent,  crooked, 
  angular,  'a`gkos  a  bend  or  hollow,  AS  angel  hook,  fish-hook, 
  G.  angel,  and  F.  anchor.] 
  1.  The  inclosed  space  near  the  point  where  two  lines  meet  a 
  corner;  a  nook. 
 
  Into  the  utmost  angle  of  the  world.  --Spenser. 
 
  To  search  the  tenderest  angles  of  the  heart. 
  --Milton. 
 
  2.  (Geom.) 
  a  The  figure  made  by  two  lines  which  meet 
  b  The  difference  of  direction  of  two  lines.  In  the  lines 
  meet  the  point  of  meeting  is  the  vertex  of  the  angle. 
 
  3.  A  projecting  or  sharp  corner;  an  angular  fragment. 
 
  Though  but  an  angle  reached  him  of  the  stone. 
  --Dryden. 
 
  4.  (Astrol.)  A  name  given  to  four  of  the  twelve  astrological 
  ``houses.''  [Obs.]  --Chaucer. 
 
  5.  [AS.  angel.]  A  fishhook;  tackle  for  catching  fish, 
  consisting  of  a  line  hook,  and  bait,  with  or  without  a 
  rod. 
 
  Give  me  mine  angle:  we  'll  to  the  river  there 
  --Shak. 
 
  A  fisher  next  his  trembling  angle  bears.  --Pope. 
 
  {Acute  angle},  one  less  than  a  right  angle,  or  less  than 
  90[deg]. 
 
  {Adjacent}  or  {Contiguous  angles},  such  as  have  one  leg 
  common  to  both  angles. 
 
  {Alternate  angles}.  See  {Alternate}. 
 
  {Angle  bar}. 
  a  (Carp.)  An  upright  bar  at  the  angle  where  two  faces  of 
  a  polygonal  or  bay  window  meet  --Knight. 
  b  (Mach.)  Same  as  {Angle  iron}. 
 
  {Angle  bead}  (Arch.),  a  bead  worked  on  or  fixed  to  the  angle 
  of  any  architectural  work  esp.  for  protecting  an  angle  of 
  a  wall. 
 
  {Angle  brace},  {Angle  tie}  (Carp.),  a  brace  across  an 
  interior  angle  of  a  wooden  frame,  forming  the  hypothenuse 
  and  securing  the  two  side  pieces  together.  --Knight. 
 
  {Angle  iron}  (Mach.),  a  rolled  bar  or  plate  of  iron  having 
  one  or  more  angles,  used  for  forming  the  corners,  or 
  connecting  or  sustaining  the  sides  of  an  iron  structure  to 
  which  it  is  riveted. 
 
  {Angle  leaf}  (Arch.),  a  detail  in  the  form  of  a  leaf,  more  or 
  less  conventionalized,  used  to  decorate  and  sometimes  to 
  strengthen  an  angle. 
 
  {Angle  meter},  an  instrument  for  measuring  angles,  esp.  for 
  ascertaining  the  dip  of  strata. 
 
  {Angle  shaft}  (Arch.),  an  enriched  angle  bead,  often  having  a 
  capital  or  base,  or  both 
 
  {Curvilineal  angle},  one  formed  by  two  curved  lines. 
 
  {External  angles},  angles  formed  by  the  sides  of  any 
  right-lined  figure,  when  the  sides  are  produced  or 
  lengthened. 
 
  {Facial  angle}.  See  under  {Facial}. 
 
  {Internal  angles},  those  which  are  within  any  right-lined 
  figure. 
 
  {Mixtilineal  angle},  one  formed  by  a  right  line  with  a  curved 
  line 
 
  {Oblique  angle},  one  acute  or  obtuse,  in  opposition  to  a 
  right  angle. 
 
  {Obtuse  angle},  one  greater  than  a  right  angle,  or  more  than 
  90[deg]. 
 
  {Optic  angle}.  See  under  {Optic}. 
 
  {Rectilineal}  or  {Right-lined  angle},  one  formed  by  two  right 
  lines. 
 
  {Right  angle},  one  formed  by  a  right  line  falling  on  another 
  perpendicularly,  or  an  angle  of  90[deg]  (measured  by  a 
  quarter  circle). 
 
  {Solid  angle},  the  figure  formed  by  the  meeting  of  three  or 
  more  plane  angles  at  one  point. 
 
  {Spherical  angle},  one  made  by  the  meeting  of  two  arcs  of 
  great  circles,  which  mutually  cut  one  another  on  the 
  surface  of  a  globe  or  sphere. 
 
  {Visual  angle},  the  angle  formed  by  two  rays  of  light,  or  two 
  straight  lines  drawn  from  the  extreme  points  of  an  object 
  to  the  center  of  the  eye. 
 
  {For  Angles  of  commutation},  {draught},  {incidence}, 
  {reflection},  {refraction},  {position},  {repose},  {fraction}, 
  see  {Commutation},  {Draught},  {Incidence},  {Reflection}, 
  {Refraction},  etc 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Incidence  \In"ci*dence\,  n.  [Cf.  F.  incidence.] 
  1.  A  falling  on  or  upon  an  incident;  an  event.  [Obs.]  --Bp. 
  Hall. 
 
  2.  (Physics)  The  direction  in  which  a  body,  or  a  ray  of  light 
  or  heat,  falls  on  any  surface. 
 
  In  equal  incidences  there  is  a  considerable 
  inequality  of  refractions.  --Sir  I. 
  Newton. 
 
  {Angle  of  incidence},  the  angle  which  a  ray  of  light,  or  the 
  line  of  incidence  of  a  body,  falling  on  any  surface,  makes 
  with  a  perpendicular  to  that  surface;  also  formerly,  the 
  complement  of  this  angle. 
 
  {Line  of  incidence},  the  line  in  the  direction  of  which  a 
  surface  is  struck  by  a  body,  ray  of  light,  and  the  like 
 
  From  WordNet  r  1.6  [wn]: 
 
  incidence 
  n  1:  the  relative  frequency  of  occurrence  of  something  [syn:  {relative 
  incidence}] 
  2:  the  striking  of  a  light  beam  on  a  surface;  "he  measured  the 
  angle  of  incidence  of  the  reflected  light"




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