Any of several shrubs or trees of the genus Citrus in the family Rutaceae.
The fruit of such plants, generally spherical, oblate, or prolate, consisting of an outer glandular skin (called zest), an inner white skin (called pith or albedo), and generally between 8 and 16 sectors filled with pulp consisting of cells with one end attached to the inner skin. Citrus fruits include orange, grapefruit, lemon, lime, and citron.
Of, relating to, or similar to citrus plants or fruit.
The tree of the species Citrus paradisi, a hybrid of pomelo (Citrus maxima) and sweet orange.
The large spherical tart fruit produced by this tree.