footlambert

noun
foot·lam·bert | \ˈfu̇t-ˌlam-bərt \

Definition of footlambert 

: a unit of luminance equal to the luminance of a perfectly diffusing surface that emits or reflects one lumen per square foot

First Known Use of footlambert

1915, in the meaning defined above

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The first known use of footlambert was in 1915

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