prism binocular

noun

: a binocular with shortened telescopic tubes in each of which light rays entering through the objective lens are reflected by two Porro prisms before passing through the eyepiece where finally an erect virtual image is formed
often used in plural
compare field glass

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Dictionary Entries Near prism binocular

Cite this Entry

“Prism binocular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prism%20binocular. Accessed 29 Mar. 2024.

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