j. heinrich lambert

Lambert

[lam-bert; for 2 also German lahm-bert]
noun
1.
Constant [kon-stuhnt] , 1905–51, English composer and conductor.
2.
Johann Heinrich [yoh-hahn hahyn-rikh] , 1728–77, German scientist and mathematician.
3.
a male given name: from Germanic words meaning “land” and “bright.”
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
lambert (ˈlæmbət)
 
n
L the cgs unit of illumination, equal to 1 lumen per square centimetre
 
[named after J. H. Lambert (1728--77), German mathematician and physicist]

Lambert (ˈlæmbət)
 
n
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 & Unabridged 10th Edition
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Etymonline
Word Origin & History

Lambert
masc. proper name, from Fr., from Ger. Lambert, from O.H.G. Lambreht, from lant "land" + beraht "bright." O.E. cognate was Landbeorht. The popularity of the name from 12c. is probably due to immigration from Flanders, where St. Lambert of Maestricht was highly venerated. Attested as a surname from 1142.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
lambert   (lām'bərt)  Pronunciation Key 
A 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. The lambert is named after the Swiss mathematician and physicist Johann Heinrich Lambert (1728-1777).
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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