[1] : The Collaborative International Dictionary of English v.0.48

reflection \reflec"tion\ r?fl?k"sh?n, n. l. reflexio: cf.
   f. r'eflexion. 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.
          1913 webster

                the eye sees not itself,
                but by reflection, by some other things. --shak.
          1913 webster
      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.
          1913 webster

                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.
          1913 webster

                this delight grows and improves under thought
                and reflection.                   --south.
          1913 webster

   2. shining; brightness, as of the sun. obs. --shak.
      1913 webster

   3. that which is produced by reflection. specifically:
      a an image given back from a reflecting surface; a
          reflected counterpart.
          1913 webster

                as the sun water we can bear,
                yet not the sun, but his reflection, there.
                                                  --dryden.
          1913 webster
      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.
          1913 webster

                job's reflections on his once flourishing estate
                did at the same time afflict and encourage him.
                                                  --atterbury.
          1913 webster

   4. censure; reproach cast.
      1913 webster

            he died; and oh may no reflection shed
            its poisonous venom on the royal dead. --prior.
      1913 webster

   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.
      1913 webster

   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.
      1913 webster

   syn: meditation; contemplation; rumination; cogitation;
        consideration; musing; thinking.
        1913 webster
see also:
riflect reflexion angle of reflection reflex action reflex angle of total reflection 
critical angle critical 

[2] : WordNet (r) 2.0

angle of reflection
     n : the angle between a reflected ray and a line perpendicular
         to the reflecting surface at the point of incidence

Angle >> A Words
Angle, definition of term: Angle
angle_pag1.html

Angle Bracket >> A Words
Angle Bracket, definition of term: Angle Bracket
angle+bracket_pag1.html

Angle Iron >> A Words
Angle Iron, definition of term: Angle Iron
angle+iron_pag1.html

Acute Angle >> A Words
Acute Angle, definition of term: Acute Angle
acute+angle_pag1.html

Dihedral Angle >> D Words
Dihedral Angle, definition of term: Dihedral Angle
dihedral+angle_pag1.html

Angle Of Attack >> A Words
Angle Of Attack, definition of term: Angle Of Attack
angle+of+attack_pag1.html

Angle Of Repose >> A Words
Angle Of Repose, definition of term: Angle Of Repose
angle+of+repose_pag1.html