ci·trine 
(sĭ-trēn, sĭtrēn′)
(sĭ-trēn, sĭtrēn′)n.
1. A pale yellow variety of crystalline quartz resembling topaz.
2. A light to moderate olive.
[Middle English, reddish yellow, from Old French citrin, from Medieval Latin citrīnus, from Latin citrus, citron tree.]
ci·trine adj.