- the large, roundish or elongated fruit of a trailing vine, Citrullus lanata, of the gourd family, having a hard, green rind and a sweet, juicy, usually pink or red pulp.
- the vine itself.
- an African melon, Citrullus vulgaris, widely cultivated for its large edible fruit
- the fruit of this plant, which has a hard green rind and sweet watery reddish flesh