foot-candle

noun

foot-can·​dle ˈfu̇t-ˈkan-dᵊl 

: a unit of illuminance on a surface that is everywhere one foot from a uniform point source of light of one candle and equal to one lumen per square foot

Word History

First Known Use

1906, in the meaning defined above

Kids Definition

foot-candle

noun

foot-can·​dle

-ˈkan-dᵊl

: a unit for measuring illumination that equals one lumen per square foot

Medical Definition

foot-candle

noun

foot-can·​dle

variants or footcandle or foot candle

-ˈkan-dᵊl 

: a unit of illuminance on a surface that is everywhere one foot from a uniform point source of light of one candle and equal to one lumen per square foot