Source : Webster's Revised Unabridged Dictionary (1913)

Deutzia \Deut"zi*a\, n. [NL. Named after Jan Deutz of Holland.]
   (Bot.)
   A genus of shrubs with pretty white flowers, much cultivated.

Source : WordNet®

deutzia
     n : any of various shrubs of the genus Deutzia having usually
         toothed opposite leaves and shredding bark and white or
         pink flowers in loose terminal clusters