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• lambert
  lambert

  noun

  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. L
• Lambert
  Lambert

  noun

  Constant 1905–51, English composer and conductor.

lambert

¹ American  

[lam-bert] / ˈlæm bərt /

noun

Optics.

1. 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. L

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Lambert ² American  

[lam-bert, lahm-bert] / ˈlæm bərt, ˈlɑm bɛrt /

noun

1. Constant 1905–51, English composer and conductor.

2. Johann Heinrich 1728–77, German scientist and mathematician.

3. a male given name: from Germanic words meaning “land” and “bright.”

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lambert ¹ British  

/ ˈlæmbət /

noun

1.  L.  the cgs unit of illumination, equal to 1 lumen per square centimetre

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Lambert ² British  

/ ˈlæmbət /

noun

1. 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

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lambert Scientific  

/ lăm′bərt /

1. 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).

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Etymology

Origin of lambert

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

Example Sentences

See Examples For:

lambert Lambert

She sat in the boat that glided through that fairy mere of lambert waves, shimmering with green.

From The Disturbing Charm by Berta Ruck

For almost a century—and long before social-media influencers—Rachel Lambert Mellon has been a tastemaker for the elite.

From The Wall Street Journal ● Aug. 15, 2026

The study, "Synthesis and structural confirmation of secalosides A and B," was supported by the National Institute of General Medical Science, the Chemistry of Life Processes Institute Lambert Fellowship and the National Science Foundation.

From Science Daily ● Jul. 6, 2026

In all, the modifications took L3Harris about 10 months from when it received the plane, Lambert said.

From The Wall Street Journal ● Jul. 1, 2026

Lambert says St Monica's can not be left to history.

From BBC ● Jun. 14, 2026

But Ms. Lambert, bless her heart, she goes for it.

From "The Serpent King" by Jeff Zentner