• synonyms


adjective Microscopy.
  1. of or relating to a binocular microscope equipped with a third lens system for photographic recording.
Show More

Origin of trinocular

First recorded in 1955–60; tri- + (bi)nocular
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for trinocular


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

Word Origin for trinocular

C20: from tri- + (bi) nocular
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012