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[luhs-ter] /ˈlʌs tər/
noun, verb (used with object), verb (used without object), lustred, lustring. Chiefly British
luster1 . Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for lustre
  • And old instruments often have a history that adds to their lustre.
  • Distance from office restores and even adds to the lustre.
  • It is little surprise, then, that a war that once enjoyed overwhelming public support has lost its lustre.
  • There is no lustre in money unless it derives its lustre from moderate enjoyment.
  • The example of her virtue shone forth with brighter lustre in that great city.
  • In his blood they have washed their robes: from him they derive all their purity, whiteness, and lustre.
  • The other glittering rich ornaments of this place seem almost to lose their lustre when the statue of the saint is uncovered.
  • Quantum computers are in danger of losing their lustre.
  • In the mid-Eighties she began to use lustre, allowing for a more subtle colour effect.
British Dictionary definitions for lustre


reflected light; sheen; gloss
radiance or brilliance of light
great splendour of accomplishment, beauty, etc
a substance used to polish or put a gloss on a surface
a vase or chandelier from which hang cut-glass drops
a drop-shaped piece of cut glass or crystal used as a decoration on a chandelier, vase, etc
  1. a shiny metallic surface on some pottery and porcelain
  2. (as modifier): lustre decoration
(mineralogy) the way in which light is reflected from the surface of a mineral. It is one of the properties by which minerals are defined
to make, be, or become lustrous
Derived Forms
lustreless, (US) lusterless, adjective
lustrous, adjective
Word Origin
C16: from Old French, from Old Italian lustro, from Latin lustrāre to make bright; related to lustrum


noun (pl) -trums, -tra (-trə)
a period of five years
Word Origin
C16: from Latin: ceremony of purification, from lustrāre to brighten, purify
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
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Word Origin and History for lustre

"gloss, radiance;" see luster (n.1).

Online Etymology Dictionary, © 2010 Douglas Harper
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lustre in Technology

(A French acronym for Synchronous real-time Lucid). Real-time dataflow language for synchronous systems, especially automatic control and signal processing. A Lucid subset, plus timing operators and user-defined clocks.
Designed for automatic control applications. It is based on the idea that automatic control engineers use to analyse, and specify their systems in terms of functions over sequences (sampled signals). It thus seems both safe and cost effective to try to compile directly those descriptions into executable code. A lot of work has been done, so as to get efficient compilation, and also in formal verification. The language has been used in nuclear plant control, and will be used in aircraft control.
["Outline of a Real-Time Data-Flow Language", J.-L. Bergerand et al, Proc IEE-CS Real Time Systems Symp, San Diego, IEEE Dec 1985, pp. 33-42].
["LUSTRE: A Declarative Language for Programming Synchronous Systems", P. Caspi et al, Conf Rec 14th Ann ACM Symp on Princ Prog Langs, 1987].

The Free On-line Dictionary of Computing, © Denis Howe 2010
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