tri·​chro·​mat ˈtrī-krō-ˌmat How to pronounce trichromat (audio)
: a person with trichromatism

Example Sentences

Recent Examples on the Web Take one cone away — go from being what scientists call a trichromat to a dichromat — and the number of possible combinations drops a factor of 100, to 10,000. Veronique Greenwood, Discover Magazine, 17 June 2012 The company prefers to describe its glasses as more of an assistive device for those, like Veronin, who are mild-to-moderate anomalous trichromats: the glasses should help them better discriminate colors in the red/green dimension. Jennifer Ouellette, Ars Technica, 6 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trichromat.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History


back-formation from trichromatic

First Known Use

1929, in the meaning defined above

Time Traveler
The first known use of trichromat was in 1929

Dictionary Entries Near trichromat

Cite this Entry

“Trichromat.” Dictionary, Merriam-Webster, Accessed 24 Mar. 2023.

Medical Definition


tri·​chro·​mat ˈtrī-krō-ˌmat, (ˈ)trī-ˈ How to pronounce trichromat (audio)
: an individual with normal color vision requiring that three primary colors be mixed in order to match the perceived spectrum
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Challenging Standardized Test Words, Vol. 2

  • a pencil broken in half on top of a test answer sheet
  • The business’s new computer system proved not to be a panacea.
True or False

Test your knowledge - and maybe learn something along the way.

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?