trid·​u·​um ˈtri-jə-wəm How to pronounce triduum (audio)
: a period of three days of prayer usually preceding a Roman Catholic feast

Example Sentences

Recent Examples on the Web Saint Paschal Baylon Roman Catholic Church will hold a triduum July 31 - August 2 in honor of Saint Peter Julian Eymard. Maria Shine Stewart,, 21 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'triduum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History


Latin, space of three days, from tri- + -duum (akin to dies day) — more at deity

First Known Use

1873, in the meaning defined above

Time Traveler
The first known use of triduum was in 1873

Dictionary Entries Near triduum

Cite this Entry

“Triduum.” Dictionary, Merriam-Webster, Accessed 1 Feb. 2023.

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