optical_opacity
1. [ noun ] (physics) opacity to light
Related terms: opacity
Similar spelling:   optical_disc
  optical_flint
  optical_aberration
  optical_lens
  optical_illusion
  optical_disk
  optical_telescope
  optical_pyrometer
  optical_prism
  optical_maser
  optical_glass
  optical_fibre
  optical_fiber
  optical_crown
  optical_bench