n. (Bot) A fruit resembling a lemon, but larger, and pleasantly aromatic. The thick rind, when candied, is the citron of commerce. A citron tree. A citron melon. Citron melon. (a) A small variety of muskmelon with sugary greenish flesh. (b) A small variety of watermelon, whose solid white flesh is used in making sweetmeats and preserves.
- Citron tree (Bot.), the tree which bears citrons. It was probably a native of northern India, and is now understood to be the typical form of Citrus Medica.