periscopism

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noun

Periscopic vision, covering a wide field without changing the direction of the optical axis.

Scrabble 19
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Meanings

nounperiscopism (uncountable)
  1. uncountablePeriscopic vision, covering a wide field without changing the direction of the optical axis.

    The purpose of the structure is to give periscopism to the eye.

    1877, Sir Norman Lockyer, Nature, volume 16, page 151

Origin

From periscope + -ism.

Full word history & related roots →
Cite this entry
APA

periscopism. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/periscopism

MLA

“periscopism.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/periscopism. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “periscopism,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/periscopism.

Source: periscopism on Wiktionary, CC BY-SA 4.0.