[mel.on] n, often attrib [ME, fr. MF, fr. LL melon-, melo, short for L melopepon-, melopepo, fr. Gk melopepon, fr. melon apple + pepon, an edible gourd--more at pumpkin] (14c) 1: any of various gourds (as a muskmelon or watermelon) usu. eaten raw as fruits
2: something rounded like a melon: as a: the rounded organ in the front of the head of some cetaceans b pl, slang: large breasts 3 a: a surplus of profits available for distribution to stockholders b: a financial windfall