- a pale-yellow fruit resembling the lemon but larger and with thicker rind, borne by a small tree or large bush, Citrus medica, allied to the lemon and lime.
- the tree itself.
- the rind of the fruit, candied and preserved.
- a grayish-green yellow color.
- citron melon.
- having the color citron.
- a small Asian rutaceous tree, Citrus medica, having lemon-like fruit with a thick aromatic rind
- the fruit of this tree
- a variety of watermelon, Citrullus vulgaris citroides, that has an inedible fruit with a hard rind
- the rind of either of these fruits, candied and used for decoration and flavouring of foods
- a greenish-yellow colour
