Source : Webster's Revised Unabridged Dictionary (1913)

Sorgo \Sor"go\, n. [Cf. It. sorgo. See {Sorghum}.] (Bot.)
   Indian millet and its varieties. See {Sorghum}.

Source : WordNet®

sorgo
     n : any of several sorghums cultivated as a source of syrup
         [syn: {sorgho}, {sweet sorghum}, {sugar sorghum}]