definitions
  • synonyms

foot-candle

or foot·can·dle

[ foo t-kan-dl ]
/ ˈfʊtˈkæn dl /
|

noun Optics.

a unit of illuminance or illumination, equivalent to the illumination produced by a source of one candle at a distance of one foot and equal to one lumen incident per square foot. Abbreviation: FC

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Nearby words

foot traffic, foot valve, foot warmer, foot-and-mouth disease, foot-binding, foot-candle, foot-dragging, foot-drop, foot-in-mouth, foot-in-mouth disease, foot-lambert

Origin of foot-candle

First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for foot-candle

  • A lumen is the quantity of light which falls on one square foot if the intensity of illumination is one foot-candle.

    Artificial Light|M. Luckiesh

British Dictionary definitions for foot-candle

foot-candle


noun

a former unit of illumination, equal to one lumen per square foot or 10.764 lux
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for foot-candle

foot-candle


n.

A unit of measure of the intensity of light falling on a surface equal to 1 lumen per square foot. It has been replaced in the International System by the candela (1 lumen per square meter).
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.