catoptric

adjective

ca·​top·​tric kə-ˈtäp-trik 

: being or using a mirror to focus light

Word History

Etymology

Greek katoptrikos, from katoptron mirror, from katopsesthai to be going to observe, from kata- + opsesthai to be going to see — more at optic

First Known Use

circa 1766, in the meaning defined above

Medical Definition

catoptric

adjective

ca·​top·​tric kə-ˈtäp-trik 

: being or using a mirror to focus light

catoptrically

-tri-k(ə-)lē 

adverb