Definition of catoptric in US English:



  • Relating to a mirror, a reflector, or reflection.

    • ‘The jewel of the site is the catoptric light with its brass and steel clockwork to turn it.’
    • ‘The most unusual feature of this microscope is the catoptric concave mirror used in image formation to reduce the effects of aberration in the objective.’
    • ‘The main problem with these early catoptric systems was the light source.’
    • ‘Ambrose, built in 1952-53, is the only lightship equipped with a modern catoptric type lens.’
    • ‘Prior to that the single catoptric fixed white light was powered by three burners.’


Mid 16th century (as a noun in the sense ‘the part of optics that deals with reflection’): from Greek katoptrikos ‘reflecting’, from katoptron ‘mirror’.