What does standard candle mean?
• STANDARD CANDLE (noun) The noun STANDARD CANDLE has 1 sense: 1. the basic unit of luminous intensity adopted under the Systeme International d’Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin Familiarity information: STANDARD CANDLE used as a noun is very rare.