Areca \A*re"ca\, n. [Canarese adiki: cf. Pg. & Sp. areca.] (Bot.) A genus of palms, one species of which ({Areca catechu}) produces the areca nut, or betel nut, which is chewed in India and Southeast Asia with the leaf of the {Piper Betle} and lime. [1913 Webster +PJC]
Betel \Be"tel\ (b[=e]"t'l), n. [Pg., fr. Tamil ve[.t][.t]ilei, prop. meaning, a mere leaf.] (Bot.) A species of pepper ({Piper betle}), the leaves of which are chewed, with the areca or betel nut and a little shell lime, by the inhabitants of the East Indies. It is a woody climber with ovate many-nerved leaves. [1913 Webster]