Source : Webster's Revised Unabridged Dictionary (1913)

Citrine \Cit"rine\, a. [F. citrin. See {Citron}.]
   Like a citron or lemon; of a lemon color; greenish yellow.

   {Citrine ointment} (Med.), a yellowish mercurial ointment,
      the {unguentum hydrargyri nitratis}.

Citrine \Cit"rine\, n.
   A yellow, pellucid variety of quartz.

Source : WordNet®

citrine
     n : semiprecious yellow quartz resembling topaz