orange

Any of several evergreen trees of the genus Citrus of Southeast Asia, 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 the sweet orange and the bitter orange.

The fruit of any of these trees, having a sweetish, acidic juice.

Any of several similar plants, such as the Osage orange and the mock orange.

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.

Of the color orange.