trinocular

[ trahy-nok-yuh-ler ]
/ traɪˈnɒk yə lər /

adjective Microscopy.

of or relating to a binocular microscope equipped with a third lens system for photographic recording.

Origin of trinocular

First recorded in 1955–60; tri- + (bi)nocular

British Dictionary definitions for trinocular

trinocular
/ (traɪˈnɒkjʊlə) /

adjective

of or relating to a binocular microscope having a lens for photographic recording while direct visual observation is taking place

Word Origin for trinocular

C20: from tri- + ( bi) nocular