honeydew melon

(noun) any of a variety of muskmelon vines having fruit with a smooth white rind and white or greenish flesh that does not have a musky smell. Synonyms: winter melon, Persian melon, winter melon vine, Cucumis melo inodorus.

(noun) the fruit of a variety of winter melon vine; a large smooth greenish-white melon with pale green flesh. Synonyms: honeydew.