Papaya is a melon-like fruit, which varies greatly in shape and size. The skin of unripe fruit is smooth, green, and thin and changes to deep orange or yellow when ripe. The flesh varies from 2.5 to 5.0 cm in thickness and yellow to orange in color.

papaya, (Carica papaya), also called papaw or pawpaw, succulent fruit of a large plant of the family Caricaceae. Though its origin is rather obscure, the papaya may represent the fusion of two or more species of Carica native to Mexico and Central America. Today it is cultivated throughout the tropical world and into the warmest parts of the subtropics..