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biprism

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈbaɪˌprɪzəm/US:USA pronunciation: respellingUSA pronunciation: respelling(bī′priz′əm)

bi•prism (bī′priz′əm),USA pronunciation n. [Optics.]

Opticsa triangular prism with an apex angle slightly less than 180°: when illuminated by a point source of light it produces two overlapping beams that form an interference pattern on a screen. Also called Fresnel biprism.

bi-¹ + prism 1880–85

Collins Concise English Dictionary © HarperCollins Publishers::

biprism /ˈbaɪˌprɪzəm/ n

a prism having a highly obtuse angle to facilitate beam splitting

'biprism' also found in these entries (note: many are not synonyms or translations):

Fresnel biprism

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⇱ biprism - WordReference.com Dictionary of English

biprism