lambert

[lam-bert]

noun Optics.

the centimeter-gram-second 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. Abbreviation: L

Origin of lambert

First recorded in 1910–15; named after J. H. Lambert

Lambert

[lam-bert; for 2 also German lahm-bert]

noun

Con·stant [kon-stuh nt] /ˈkɒn stənt/, 1905–51, English composer and conductor.
Jo·hann Hein·rich [yoh-hahn hahyn-rikh] /ˈyoʊ hɑn ˈhaɪn rɪx/, 1728–77, German scientist and mathematician.
a male given name: from Germanic words meaning “land” and “bright.”

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for lambert

Contemporary Examples of lambert

“But you must have done something to deserve it,” Lambert recalled Bodenheimer saying before he walked off.
This 'Holy Guy'—and Grandfather of 100—Is Accused of Sexually Abusing a Student
Batya Ungar-Sargon
September 9, 2014
Still, Lambert says, he was surprised to hear about the allegations of sexual abuse.
This 'Holy Guy'—and Grandfather of 100—Is Accused of Sexually Abusing a Student
Batya Ungar-Sargon
September 9, 2014
Thankfully, Lambert has not restricted his artistic endeavours to iPads.
This iPad Finger Painting of Morgan Freeman Is Amazingly Realistic
Chancellor Agard
December 4, 2013
In 2011, Lambert was a featured artist at the Macworld Expo.
This iPad Finger Painting of Morgan Freeman Is Amazingly Realistic
Chancellor Agard
December 4, 2013
“It is still Benjamin Franklin and still easily recognized,” said Lambert.
All About the Benjamins: Here’s the Redesigned $100 Bill
Daniel Gross
October 7, 2013

Historical Examples of lambert

"And old Lambert," said one of the other girls, delightedly.
Malbone
Thomas Wentworth Higginson
The fisherman had indeed seen Lambert's boat, which was well known.
Malbone
Thomas Wentworth Higginson
He says a friend of his, the Governor of——what was that name again, Lambert?
A Tangled Tale
Lewis Carroll
He took out the little bucket as he spoke, and handed the big one to Lambert.
A Tangled Tale
Lewis Carroll
Balbus, Lambert, and Hugh had entered the house only a few minutes before them.
A Tangled Tale
Lewis Carroll

British Dictionary definitions for lambert

lambert

noun

the cgs unit of illumination, equal to 1 lumen per square centimetreSymbol: L

Word Origin for lambert

named after J. H. Lambert (1728–77), German mathematician and physicist

Lambert

noun

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 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for lambert

Lambert

masc. proper name, from French, from German Lambert, from Old High German Lambreht, from lant "land" + beraht "bright." Old English 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 mid-12c.

lambert in Science

lambert

[lăm′bərt]

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).