reflecting : Idioms & Phrases

• an astronomical instrument for measuring angless, like the sextant or Hadley's quadrant, by the reflection of light from two plane mirrors which it carries, and differing from the sextant chiefly in having an entire circle.

Webster 1913

• a galvanometer in which the deflections of the needle are read by means of a mirror attached to it, which reflects a ray of light or the image of a scale; called also mirror galvanometer.

Webster 1913

• . See under Goniometer.

Webster 1913

• noun optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece
  reflector.
  
  • Isaac Newton invented the reflecting telescope in 1668

WordNet

• . See under Telescope.

Webster 1913