one of the seven prayer times appointed for each day by canon law
WordReference Random House Unabridged Dictionary of American English © 2026
canon′ical hour′,
- Religion[Eccles.]any of certain periods of the day set apart for prayer and devotion: these are matins and lauds, prime, tierce, sext, nones, vespers, and compline.
- late Middle English 1400–50
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'canonical hour' also found in these entries (note: many are not synonyms or translations):