Physics a basic unit of illumination in the SI and MKS systems, equal to one lumen per square meter (0.0929 foot-candles or one candela per square meter): abbrev. lx
Origin:
L, light
Luxembourg
See lux in American Heritage Dictionary 4
nounpl.lux·es or lu·ces(lo͞oˈsēz) Abbr. lx
The International System unit of illumination, equal to one lumen per square meter. See Table at measurement.
Origin:
Origin: Latin lūx, light; see leuk- in Indo-European roots