pentaprism

noun
pen·​ta·​prism | \ˈpentə+ˌ-\

Definition of pentaprism 

: a pentagonal prism having one angle 90° and the others 112° 30′, producing a constant deviation of 90° for any wavelength, and used as a reflector in range finders

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History and Etymology for pentaprism

penta- + prism

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Dictionary Entries near pentaprism

pentapody

pentapolis

pentapolitan

pentaprism

pentarch

pentarchy

pentas

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