1. 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. the fruit of any of these trees, having a sweetish, acidic juice.
3. any of several similar plants, such as the Osage orange and the mock orange.
4. 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. of the color orange.
6. made from oranges.
7. tasting or smelling like oranges.

1. an evergreen tree of the genus citrus such as citrus aurantium.
2. the fruit of an orange tree; a citrus fruit with a slightly sour flavour.
3. the colour of a ripe orange (the fruit); a color midway between red and yellow.
4. having the colour of the fruit of an orange tree; yellowred; reddish-yellow.
5. to color orange.
6. to become orange.

1. of or pertaining to an orange; of the color of an orange; reddish yellow.
2. 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.
3. the tree that bears oranges; the orange tree.
4. the color of an orange; reddish yellow.

1. 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.
2. 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.
3. A reddish-yellow color, of which the orange is the type.
4. in heraldry, a roundel tenné. see roundel.
5. 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. 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. 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. same as orange T.

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