roof prism

noun

A reflective optical prism containing a section where two faces meet at a 90° angle, resembling the roof of a building. Reflection from the two 90° faces returns an image that is flipped laterally across the axis where the faces meet.

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Meanings

nounroof prism (plural roof prisms)

plural roof prisms

  1. A reflective optical prism containing a section where two faces meet at a 90° angle, resembling the roof of a building. Reflection from the two 90° faces returns an image that is flipped laterally across the axis where the faces meet.
Cite this entry
APA

roof prism. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/roof%20prism

MLA

“roof prism.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/roof%20prism. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “roof prism,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/roof%20prism.

Source: roof prism on Wiktionary, CC BY-SA 4.0.