- 1. The fruit of the o. tree, Citrus aurantium (family Rutaceae). 2. A color between yellow and red in the spectrum. For individual o. dyes, see specific name. [O.F. orenge, fr. Ar. naranj, the initial n being absorbed in Fr. article une]- bitter o. peel, dried the dried outer part of the pericarp of the ripe, or nearly ripe, fruit; it contains not less than 2.5% v/w of volatile oil.- bitter o. peel, fresh the outer part of the pericarp of the ripe, or nearly ripe, fruit; used to prepare the tincture and the syrup.- bitter o. peel oil a volatile oil obtained by expression from the fresh peel of the bitter o..
* * *or·ange 'är-inj, 'ȯr- n1 a) a globose berry with a yellowish to reddish orange rind and a sweet edible pulpb) any of various rather small evergreen trees (genus Citrus) with ovate leaves, hard yellow wood, fragrant white flowers, and fruits that are oranges2) often cap AGENT ORANGE
* * *or·ange (orґənj) [L. aurantium] 1. any of several species of Citrus, particularly Citrus aurantium, the bitter orange, and Citrus sinensis, the sweet orange. 2. the fruit of C. aurantium or C. sinensis; used in pharmaceutical preparations. 3. a color between red and yellow, produced by energy of wavelengths between 590 and 630 nm. 4. a dye or stain with this color. 5. of or relating to the fruit of Citrus aurantium.
Medical dictionary. 2011.