Source : Webster's Revised Unabridged Dictionary (1913)

Gonad \Gon"ad\, n.; pl. {Gonads}. [Gr. ? that which generates.]
   (Anat.)
   One of the masses of generative tissue primitively alike in
   both sexes, but giving rise to either an ovary or a testis; a
   generative gland; a germ gland. --Wiedersheim.

Source : WordNet®

gonad
     n : a gland in which gametes (sex cells) are produced [syn: {sex
         gland}]