or·ange - n.

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.