Source : Webster's Revised Unabridged Dictionary (1913)

Saxifraga \Sax*if"ra*ga\, n. [L., saxifrage. See {Saxifrage}.]
   (Bot.)
   A genus of exogenous polypetalous plants, embracing about one
   hundred and eighty species. See {Saxifrage}.

Source : WordNet®

Saxifraga
     n : type genus of the Saxifragaceae; large genus of usually
         perennial herbs of arctic and cool regions of northern
         hemisphere: saxifrage [syn: {genus Saxifraga}]