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(US), luster
a. a shiny metallic surface on some pottery and porcelain
b. (as modifier): lustre decoration
2. 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


(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].
References in periodicals archive ?
Staff at Lustrum Vale were supposed to keep in contact with Mr Laville's family by calling them midway through his leave to make sure he wasn't abusing drugs and alcohol, but that wasn't done.
The Environment Agencys Ted Thomas, Project Manager, said: Work is progressing well on the Lustrum Beck scheme, with the new screen at Primrose Hill now operational and the flood wall at Bedford Street nearly complete.
It was tested for the first time on November 21, during high water levels on Lustrum Beck.
The council's cabinet member for environment and housing, Councillor Mike Smith said: "The replacement of Londonderry Bridge is an essential part of the broader Lustrum Beck flood alleviation scheme to help reduce the flood risk to homes.
The Environment Agency is working closely with Stockton Council on the PS3m Lustrum Beck flood alleviation scheme.
The work is part of the PS3m Lustrum Beck flood alleviation scheme to reduce the risk of flooding to more than 150 homes.
initially proposed the diversions as it looks to replac| Londonderry Bridge, on busy durham road, as part of wider PS3m flood defence work at Lustrum Beck.
The nurse had been working at Lustrum Vale mental health unit in Stockton
Scenes from the Lustrum Beck area of Stockton on Boxing Day and some of The Gazette's coverage yesterday
The Met Office issued a yellow severe weather warning for rain across the North-east, particularly naming the area around Lustrum Beck in Stockton as being in danger.
Flood alerts were issued on Saturday for low-lying land in the lower Tees Valley, from Middleton St George to the Tees Barrage, which includes Lustrum Beck, Greatham Beck and the Riverside footpaths at Yarm.
Londonderry Bridge is being replaced as part of the plans to improve flood defences at Lustrum Beck in Stockton.