Pronunciation: (si'trun), [key]
1. 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.
2. the tree itself.
3. the rind of the fruit, candied and preserved.
4. a grayish-green yellow color.
5. See citron melon.
having the color citron.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.