The words radiant and luminous are synonyms, but do differ in nuance. In what contexts can radiant take the place of luminous? While the synonyms lustrous and luminous are close in meaning, lustrous stresses an even, rich light from a surface that reflects brightly without glittering. When can lustrous be used instead of luminous? Photometry involves the measurement of luminous intensities of light sources and of the illumination of surfaces. Most clocks and watches in this shop are in luminous paint. My watch has a luminous dial so I can see it in the dark. When is brilliant a more appropriate choice than luminous?Īlthough the words brilliant and luminous have much in common, brilliant implies intense often sparkling brightness. Radiating or reflecting light giving out light, whether as an original or as a secondary source illuminating shining radiant bright. Luminous characters of thallium iodide used as luminous material in metal halide lamps are presented. Other than that, they are fairly hassle-free in maintenance, and generally a durable choice for UL924-listed exit signs. Once self-luminous exit signs expire, there is a return-fee incurred to dispose of the sign properly by the original manufacturer. brilliant intellectually enlightened or enlightening, as a writer or a writer's works: a luminous concept luminous prose. lighted up or illuminated well-lighted: the luminous ballroom. However, bright implies emitting or reflecting a high degree of light. Self-Luminous (definition): Generating and emitting its own visible light. radiating or reflecting light shining bright. In some situations, the words bright and luminous are roughly equivalent. When is it sensible to use bright instead of luminous? While all these words mean 'shining or glowing with light,' luminous implies emission of steady, suffused, glowing light by reflection or in surrounding darkness. Noorani (Arabic: ) is a Muslim surname, derived from the Persian nurani, meaning 'luminous' or 'bright', from the Arabic nur, meaning 'light'. Some common synonyms of luminous are bright, brilliant, lustrous, and radiant. Frequently Asked Questions About luminous How does the adjective luminous differ from other similar words? The definition of lumen is: a unit of luminous flux in the International System of Units, that is equal to the amount of light given out through a solid angle by a source of one candela intensity radiating equally in all directions.

Luminous meaning