Noun

(en noun)

One of the individual female reproductive organs in a flower. A carpel is composed of an ovary, a style, and a stigma, although some flowers have carpels without a distinct style. In origin, carpels are leaves (megasporophylls) that have evolved to enclose the ovules. The term pistil is sometimes used to refer to a single carpel or to several carpels fused together.

Noun

(en noun)

(historical) A former unit to measure the intensity of light, approximately 9.74 candelas

*{{quote-book, year=1901, author=Charles King, title=Ray's Daughter, chapter=, edition= citation

, passage=They would surely have heard of it, and now he was here, still virtually in hiding and possibly in disguise, and one unguarded word of hers might land him a prisoner, a war-time deserter, within the walls of the gloomy carcel in Old Manila. }}

*{{quote-book, year=1896, author=Various, title=Scientific American Supplement, No. 1082, September 26, 1896, chapter=, edition= citation

, passage=In all systems of lighting, save electricity, the unit of light is the carcel . }}

*{{quote-book, year=1888, author=Various, title=Scientific American Supplement, No. 664, September 22,1888, chapter=, edition= citation

, passage=When experimenting in Paris with a No. 3 lamp in a vertical direction, it showed a consumption of 34.6 liters (1.2 cubic feet) per carcel obtained. }}

*{{quote-book, year=1885, author=Various, title=Scientific American Supplement, No. 488, May 9, 1885, chapter=, edition= citation

, passage=Desroziers in a series of experiments obtained as much as 250 carcel spherical luminous value per horse-power; this characteristic is one likely to be of great value in electric lighting by incandescence of high intensity. }}