Source : Webster's Revised Unabridged Dictionary (1913)

Proteaceous \Pro`te*a"ceous\, a. [From {Proteus}.] (Bot.)
   Of or pertaining to the {Proteace[ae]}, an order of apetalous
   evergreen shrubs, mostly natives of the Cape of Good Hope or
   of Australia.

Source : WordNet®

Proteaceae
     n : large family of Australian and South African shrubs and
         trees with leathery leaves and clustered mostly
         tetramerous flowers; constitutes the order Proteales
         [syn: {family Proteaceae}, {protea family}]