Definitions

1. noun

A unit of luminous flux, equivalent to the light emitted by one candle; or a unit of brightness, equivalent to one candela.

“The lumen rating of a lamp is 1000 lamberts, which is very bright.”

2. noun

A unit of measurement in the cgs system, used to express the luminance of a surface.

“The paint has a high lambert value, which makes it look very shiny.”

3. proper noun

A surname of French origin.

“Lambert is a common surname in France, with many notable people bearing the name.”

4. proper noun

A unit of measurement in the cgs system, named after Jean-Charles Lambert.

“The lambert is a unit of measurement that is still used in some scientific applications.”