TRIDUUM


Meaning of TRIDUUM in English

[ 'trɪdjʊəm , 'trʌɪ- ]

■ noun (especially in the Roman Catholic Church) a period of three days' observance, specifically Maundy Thursday, Good Friday, and Holy Saturday.

Origin

L., from tri- 'three' + dies 'day'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.