lustral

[ luhs-truh l ]
/ ˈlʌs trəl /

adjective

of, relating to, or employed in the lustrum, or rite of purification.
occurring every five years; quinquennial.

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Origin of lustral

From the Latin word lūstrālis, dating back to 1525–35. See lustrum, -al1
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Example sentences from the Web for lustral

British Dictionary definitions for lustral

lustral
/ (ˈlʌstrəl) /

adjective

of or relating to a ceremony of purification
taking place at intervals of five years; quinquennial

Word Origin for lustral

C16: from Latin lūstrālis adj from lustrum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012