Diocletian window

noun

A large semicircular window, characteristic of the enormous public baths (thermae) of Ancient Rome.

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Meanings

nounDiocletian window (plural Diocletian windows)

plural Diocletian windows

  1. architectureA large semicircular window, characteristic of the enormous public baths (thermae) of Ancient Rome.
Cite this entry
APA

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

MLA

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

Chicago

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

Source: Diocletian window on Wiktionary, CC BY-SA 4.0.