lustrum

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lus·trum

 (lŭs′trəm)
n. pl. lus·trums or lus·tra (-trə)
1. A ceremonial purification of the entire ancient Roman population after the census every five years.
2. A period of five years.

[Latin lūstrum; see luster.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

lustrum

(ˈlʌstrəm) or

lustre

n, pl -trums or -tra (-trə)
(Units) a period of five years
[C16: from Latin: ceremony of purification, from lustrāre to brighten, purify]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

lus•trum

(ˈlʌs trəm)

n., pl. -trums, -tra (-trə).
1. (in ancient Rome) a lustration or ceremonial purification of the people, performed every five years, after the taking of the census.
2. Also, luster ;esp. Brit., lustre. a period of five years.
[1580–90; < Latin lūstrum; compare luster1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

lustrum, luster, lustre

a period of five years.
See also: Calendar
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.lustrum - a period of five years
period, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"
2.lustrum - a ceremonial purification of the Roman population every five years following the census
ceremony - the proper or conventional behavior on some solemn occasion; "an inaugural ceremony"
capital of Italy, Eternal City, Italian capital, Rome, Roma - capital and largest city of Italy; on the Tiber; seat of the Roman Catholic Church; formerly the capital of the Roman Republic and the Roman Empire
antiquity - the historic period preceding the Middle Ages in Europe
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
Lustrum
References in periodicals archive ?
The arguments are fresh, the stories full of colour, and, through Van Mook and beyond Van Mook, there is much to be learned--about Malang of the hero's childhood; Soerabaja of his HBS; Delft, Leiden, and Amsterdam of the drunken lustrums (Van Mook looks sober in the picture); his student politics, his student theatre, and his marriage; his time in the Indies as an ambitious ambtenaar; Semarang, Jogjakarta of the nineteen-thirties; and finally Batavia, where Van Mook had risen to the top of the Indies hierarchy, Toean naik pangkat, as the family baboe commented.