Pronunciation: (lam'burt),[key] —n.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. Abbr.: L
Pronunciation: (lam'burt; for 2 also Ger. läm'bert),[key] —n. 1. Con•stant Pronunciation: (kon'stunt),[key] 1905–51, English composer and conductor.
2. Jo•hann Hein•rich Pronunciation: (yō'hän hīn'rikh),[key] 1728–77, German scientist and mathematician.
3. a male given name: from Germanic words meaning “land” and “bright.”