D defs.my
Entry 1 sense Webster, 1913

Catadioptrics

· Cat·a·di·op·trics · IPA
01 n. The science which treats of catadioptric phenomena, or of the used of catadioptric instruments.
  1. 1.
    The science which treats of catadioptric phenomena, or of the used of catadioptric instruments.