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n. Abbr. L
The unit of luminance in the centimeter-gram-second system, equivalent to the luminance of a perfectly diffusing surface that emits or reflects one lumen per square centimeter.
[After Johann Heinrich Lambert (1728-1777), German physicist and astronomer.]
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.
(Units) the cgs unit of illumination, equal to 1 lumen per square centimetre. Symbol: L
[named after J. H. Lambert (1728–77), German mathematician and physicist]
(Biography) Constant. 1905–51, English composer and conductor. His works include much ballet music and The Rio Grande (1929), a work for chorus, orchestra, and piano, using jazz idioms
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
the cgs unit of luminance or brightness, equivalent to 0.32 candles per square centimeter and equal to the brightness of a perfectly diffusing surface emitting or reflecting one lumen per square centimeter. Abbr.: L
[1910–15; after Johann Heinrich Lambert (1728–77), German mathematician]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||lambert - a cgs unit of illumination equal to the brightness of a perfectly diffusing surface that emits or reflects one lumen per square centimeter|
illumination unit - a measure of illumination
|2.||Lambert - English composer and conductor (1905-1951)|
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