shaddock

A tree, Citrus decumana, of the orange genus; also, its fruit.

A tree (Citrus decumana) and its fruit, which is a large species of orange; — called also forbidden fruit, and pompelmous.

pomelo

grapefruit

large pear-shaped fruit similar to grapefruit but with coarse dry pulp

southeastern Asian tree producing large fruits resembling grapefruits