orange

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Any of several southeast Asian evergreen trees of the genus Citrus, widely cultivated in warm regions and having fragrant white flowers and round fruit with a yellowish or reddish rind and a sectioned, pulpy interior, especially C. sinensis, the sweet orange, and C. aurantium, the Seville or sour orange.
2. n. The fruit of any of these trees, having a sweetish, acidic juice.
3. n. Any of several similar plants, such as the Osage orange and the mock orange.
4. n. The hue of that portion of the visible spectrum lying between red and yellow, evoked in the human observer by radiant energy with wavelengths of approximately 590 to 630 nanometers; any of a group of colors between red and yellow in hue, of medium lightness and moderate saturation.
5. adj. Of the color orange.
6. adj. Made from oranges.
7. adj. Tasting or smelling like oranges.

Century Dictionary and Cyclopedia

1. n. The fruit of the orange-tree, a large globose berry of eight or ten membranous cells, each containing several seeds which are packed in a pulp of fusiform vesicles, distended with an acidulous refreshing juice. There are three principal varieties of the orange — the sweet or China orange, Citrus Aurantium proper, including the ordinary market sorts; the bitter or Seville orange or bigarade, variety Bigaradia, used for making marmalade, its peel being specially valued; and the bergamot orange, variety Bergamia, classed by some, however, as a variety of Citrus Medica (see bergamot, 1).
2. n. A rather low branching evergreen fruit-tree, Citrus Aurantium, with greenish-brown bark, elliptical or ovate coriaceous leaves, the petiole often winged, and fragrant white flowers. It is long-lived and extremely prolific. When no longer fruitful, its hard, fine-grained, yellowish wood is valued for inlaid work and fine turnery. Its flowers are prized when fresh (see orange-blossoms), and (chiefly those of the bitter orange) yield neroli-oil and orange-water. The varieties of the orange are very numerous, distinguished most obviously by their fruit. Its origin is referred to India, whence it spread to western Asia, thence reaching Spain and Italy, through the agency of the Moors and the crusaders, between the eleventh and fourteenth centuries. It is now cultivated in nearly all tropical and subtropical lands, including China and Japan, the whole Mediterranean basin, the West Indies, and the southern borders of the United States, having, indeed, become thoroughly wild in Florida.
3. n. A reddish-yellow color, of which the orange is the type.
4. n. In heraldry, a roundel tenné. See roundel.
5. n. The Carolina cherry-laurel, Prunus Caroliniana. It is a small tree with glossy coriaceous leaves, wild and cultivated for ornament in the southern United States. Its foliage, bark, and fruit contain prussic acid, and the leaves are often fatal to animals browsing upon them. Also called mock-orange and wild peach.
6. n. See toothache-tree.
7. Of or belonging to an orange; specifically, being of the reddish-yellow color of the orange.
8. Of or pertaining to the principality of Orange in France, or the line of princes named from it: often with special reference to William III. of England, Prince of Orange, who was regarded as the champion of Protestantism against Louis XIV. on the continent, and against James II. in Ireland.
9. Of or pertaining to the Society of Orangemen, or Orangeism: as, an Orange lodge; an Orange emblem. See Orangeman.
10. n. A mordant acid coal-tar color of the monoazo type prepared by combining diazotized para-nitraniline with salicylic acid. Also called alizarin yellow R.
11. n. Same as orange T.

Wiktionary

1. n. An evergreen tree of the genus Citrus such as Citrus aurantium.
2. n. The fruit of an orange tree; a citrus fruit with a slightly sour flavour.
3. n. The colour of a ripe orange (the fruit); a color midway between red and yellow.
4. adj. Having the colour of the fruit of an orange tree; yellowred; reddish-yellow.
5. v. transitive To color orange.
6. v. intransitive To become orange.

GNU Webster's 1913

1. n. The fruit of a tree of the genus Citrus (Citrus Aurantium). It is usually round, and consists of pulpy carpels, commonly ten in number, inclosed in a leathery rind, which is easily separable, and is reddish yellow when ripe.
2. n. (Bot.) The tree that bears oranges; the orange tree.
3. n. The color of an orange; reddish yellow.
4. adj. Of or pertaining to an orange; of the color of an orange; reddish yellow.

WordNet 3.0

1. n. any citrus tree bearing oranges
2. n. a river in South Africa that flows generally westward to the Atlantic Ocean
3. n. round yellow to orange fruit of any of several citrus trees
4. n. any pigment producing the orange color
5. adj. of the color between red and yellow; similar to the color of a ripe orange
6. n. orange color or pigment; any of a range of colors between red and yellow