trinocular

adjective

trin·oc·u·lar (ˌ)trī-ˈnä-kyə-lər

: relating to or being a binocular microscope equipped with a lens for photographic recording during direct visual observation

Word History

Etymology

tri- + binocular

First Known Use

1960, in the meaning defined above

Time Traveler

The first known use of trinocular was in 1960

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Browse Nearby Words

trinkums

trinocular

trinodal

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Cite this Entry

Style

“Trinocular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trinocular. Accessed 14 Feb. 2026.

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Medical Definition

trinocular

adjective

trin·oc·u·lar (ˈ)trī-ˈnäk-yə-lər

: relating to or being a binocular microscope equipped with a lens for photographic recording during direct visual observation

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