mi·​cro·​prism ˈmī-krə-ˌpri-zəm How to pronounce microprism (audio)
: a usually circular area on the focusing screen of a camera that is made up of tiny prisms and that causes the image in the viewfinder to blur if the subject is not in focus

Word History

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of microprism was in 1962

Dictionary Entries Near microprism

Cite this Entry

“Microprism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microprism. Accessed 25 Feb. 2024.

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