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Meaning of trinocular

trin•oc•u•lar

Pronunciation: (trī-nok'yu-lur), [key]
— adj. Micros.
  1. of or pertaining to a binocular microscope equipped with a third lens system for photographic recording.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.