Source : Webster's Revised Unabridged Dictionary (1913)

Carnauba \Car*nau"ba\, n. (Bot.)
   The Brazilian wax palm. See {Wax palm}.

Source : WordNet®

carnauba
     n 1: hard yellowish to brownish wax from leaves of the carnauba
          palm used especially in floor waxes and polishes [syn: {carnauba
          wax}]
     2: Brazilian fan palm having an edible root; source of a useful
        leaf fiber and a brittle yellowish wax [syn: {carnauba
        palm}, {wax palm}, {Copernicia prunifera}, {Copernicia
        cerifera}]