n. (Photom.) A light standard much used in France, being the light from a Carcel lamp of stated size and construction consuming 42 grams of colza oil per hour with a flame 40 millimeters in height. Its illuminating power is variously stated at from 8.9 to 9.6 British standard candles. [ Webster 1913 Suppl. ]
n. [ LL. carcelladium, carceragium, fr. L. carcer prison. ] Prison fees. [ Obs. ] [ 1913 Webster ]
[ Named after Carcel, the inventor. ] A French mechanical lamp, for lighthouses, in which a superabundance of oil is pumped to the wick tube by clockwork. [ 1913 Webster ]