or cand·le pow·er


noun Optics.

(formerly) a measure of luminous intensity expressed in candles.

Nearby words

  1. candlemas,
  2. candlemass,
  3. candlenut,
  4. candlepin,
  5. candlepins,
  6. candlesnuffer,
  7. candlestand,
  8. candlestick,
  9. candlewick,
  10. candlewood

Origin of candlepower

First recorded in 1875–80; candle + power Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for candlepower

  • In an ordinary 16 candlepower carbon lamp, the resistance of this filament is 220 ohms.

    Electricity for the farm|Frederick Irving Anderson
  • The lamps should be of low voltage and need not be very high in candlepower.

  • One farm (that of the owner of the wheel) has 30 lamps, of 16 candlepower each, and two barn-yard lamps of 92 candlepower each.

    Electricity for the farm|Frederick Irving Anderson
  • The new nitrogen lamp, not yet in general use, requires only ½ watt to the candlepower.

    Electricity for the farm|Frederick Irving Anderson

British Dictionary definitions for candlepower



the luminous intensity of a source of light in a given direction: now expressed in candelas but formerly in terms of the international candle
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

Science definitions for candlepower



Luminous intensity, expressed in candelas.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.