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reflectionmore about reflection


  5  definitions  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Plane  \Plane\,  n.  [F.  plane,  L.  plana.  See  {Plane},  v.  &  a.] 
  1.  (Geom.)  A  surface,  real  or  imaginary,  in  which  if  any  two 
  points  are  taken  the  straight  line  which  joins  them  lies 
  wholly  in  that  surface;  or  a  surface,  any  section  of  which 
  by  a  like  surface  is  a  straight  line  a  surface  without 
  2.  (Astron.)  An  ideal  surface,  conceived  as  coinciding  with 
  or  containing,  some  designated  astronomical  line  circle, 
  or  other  curve;  as  the  plane  of  an  orbit;  the  plane  of 
  the  ecliptic,  or  of  the  equator. 
  3.  (Mech.)  A  block  or  plate  having  a  perfectly  flat  surface, 
  used  as  a  standard  of  flatness;  a  surface  plate. 
  4.  (Joinery)  A  tool  for  smoothing  boards  or  other  surfaces  of 
  wood,  for  forming  moldings,  etc  It  consists  of  a 
  smooth-soled  stock,  usually  of  wood,  from  the  under  side 
  or  face  of  which  projects  slightly  the  steel  cutting  edge 
  of  a  chisel,  called  the  iron,  which  inclines  backward, 
  with  an  apperture  in  front  for  the  escape  of  shavings;  as 
  the  jack  plane;  the  smoothing  plane;  the  molding  plane, 
  {Objective  plane}  (Surv.),  the  horizontal  plane  upon  which 
  the  object  which  is  to  be  delineated,  or  whose  place  is  to 
  be  determined,  is  supposed  to  stand 
  {Perspective  plane}.  See  {Perspective}. 
  {Plane  at  infinity}  (Geom.),  a  plane  in  which  points 
  infinitely  distant  are  conceived  as  situated. 
  {Plane  iron},  the  cutting  chisel  of  a  joiner's  plane. 
  {Plane  of  polarization}.  (Opt.)  See  {Polarization}. 
  {Plane  of  projection}. 
  a  The  plane  on  which  the  projection  is  made 
  corresponding  to  the  perspective  plane  in  perspective; 
  --  called  also  principal  plane. 
  b  (Descriptive  Geom.)  One  of  the  planes  to  which  points 
  are  referred  for  the  purpose  of  determining  their 
  relative  position  in  space. 
  {Plane  of  refraction}  or  {reflection}  (Opt.),  the  plane  in 
  which  lie  both  the  incident  ray  and  the  refracted  or 
  reflected  ray. 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Reflection  \Re*flec"tion\  (r?*fl?k"sh?n),  n.  [L.  reflexio:  cf 
  F.  r['e]flexion.  See  {Riflect}.]  [Written  also  {reflexion}.] 
  1.  The  act  of  reflecting,  or  turning  or  sending  back  or  the 
  state  of  being  reflected.  Specifically: 
  a  The  return  of  rays,  beams,  sound,  or  the  like  from  a 
  surface.  See  {Angle  of  reflection},  below. 
  The  eye  sees  not  itself  But  by  reflection,  by 
  some  other  things  --Shak. 
  b  The  reverting  of  the  mind  to  that  which  has  already 
  occupied  it  continued  consideration;  meditation; 
  contemplation;  hence  also  that  operation  or  power  of 
  the  mind  by  which  it  is  conscious  of  its  own  acts  or 
  states;  the  capacity  for  judging  rationally, 
  especially  in  view  of  a  moral  rule  or  standard. 
  By  reflection,  .  .  .  I  would  be  understood  to 
  mean  that  notice  which  the  mind  takes  of  its 
  own  operations,  and  the  manner  of  them  by 
  reason  whereof  there  come  to  be  ideas  of  these 
  operations  in  the  understanding.  --Locke. 
  This  delight  grows  and  improves  under  thought 
  and  reflection.  --South. 
  2.  Shining;  brightness,  as  of  the  sun.  [Obs.]  --Shak. 
  3.  That  which  is  produced  by  reflection.  Specifically: 
  a  An  image  given  back  from  a  reflecting  surface;  a 
  reflected  counterpart. 
  As  the  sun  water  we  can  bear,  Yet  not  the  sun, 
  but  his  reflection,  there  --Dryden. 
  b  A  part  reflected,  or  turned  back  at  an  angle;  as  the 
  reflection  of  a  membrane. 
  c  Result  of  meditation;  thought  or  opinion  after 
  attentive  consideration  or  contemplation;  especially, 
  thoughts  suggested  by  truth. 
  Job's  reflections  on  his  once  flourishing  estate 
  did  at  the  same  time  afflict  and  encourage  him 
  4.  Censure;  reproach  cast. 
  He  died;  and  oh!  may  no  reflection  shed  Its 
  poisonous  venom  on  the  royal  dead.  --Prior. 
  5.  (Physiol.)  The  transference  of  an  excitement  from  one 
  nerve  fiber  to  another  by  means  of  the  nerve  cells,  as  in 
  reflex  action  See  {Reflex  action},  under  {Reflex}. 
  {Angle  of  reflection},  the  angle  which  anything  as  a  ray  of 
  light,  on  leaving  a  reflecting  surface,  makes  with  the 
  perpendicular  to  the  surface. 
  {Angle  of  total  reflection}.  (Opt.)  Same  as  {Critical  angle}, 
  under  {Critical}. 
  Syn:  Meditation;  contemplation;  rumination;  cogitation; 
  consideration;  musing;  thinking. 
  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. 
  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. 
  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 
  Give  me  mine  angle:  we  'll  to  the  river  there 
  A  fisher  next  his  trembling  angle  bears.  --Pope. 
  {Acute  angle},  one  less  than  a  right  angle,  or  less  than 
  {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 
  {Facial  angle}.  See  under  {Facial}. 
  {Internal  angles},  those  which  are  within  any  right-lined 
  {Mixtilineal  angle},  one  formed  by  a  right  line  with  a  curved 
  {Oblique  angle},  one  acute  or  obtuse,  in  opposition  to  a 
  right  angle. 
  {Obtuse  angle},  one  greater  than  a  right  angle,  or  more  than 
  {Optic  angle}.  See  under  {Optic}. 
  {Rectilineal}  or  {Right-lined  angle},  one  formed  by  two  right 
  {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  WordNet  r  1.6  [wn]: 
  n  1:  a  calm  lengthy  intent  consideration  [syn:  {contemplation},  {meditation}, 
  {reflexion},  {rumination},  {musing},  {thoughtfulness}] 
  2:  the  phenomenon  of  a  propagating  wave  (light  or  sound)  being 
  thrown  back  from  a  surface  [syn:  {reflexion}] 
  3:  expression  without  words  "tears  are  an  expression  of 
  grief";  "the  pulse  is  a  reflection  of  the  heart's 
  condition"  [syn:  {expression},  {manifestation},  {reflexion}] 
  4:  a  likeness  in  which  left  and  right  are  reversed  [syn:  {mirror 
  image},  {reflexion}] 
  5:  the  image  of  something  as  reflected  by  a  mirror  (or  other 
  reflective  material);  "he  studied  his  reflection  inthe 
  6:  a  remark  expressing  careful  consideration  [syn:  {observation}, 
  7:  the  ability  to  reflect  beams  or  rays  [syn:  {reflexion},  {reflectivity}] 
  From  THE  DEVIL'S  DICTIONARY  ((C)1911  Released  April  15  1993)  [devils]: 
  REFLECTION,  n.  An  action  of  the  mind  whereby  we  obtain  a  clearer  view 
  of  our  relation  to  the  things  of  yesterday  and  are  able  to  avoid  the 
  perils  that  we  shall  not  again  encounter. 

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