car·nau·ba 
(kär-nôbə, -nou-, -n-)
(kär-nôbə, -nou-, -n-)n.
1. A palm tree (Copernicia prunifera) of Brazil, having fan-shaped waxy leaves.
2. A hard wax obtained from the leaves of this plant, used in polishes, cosmetics, and as a food additive. Also called carnauba wax.
[Portuguese, from Tupí carnaúba.]