Areca :: Areca (n.) A genus of palms, one species of which produces the areca nut, or betel nut, which is chewed in India with the leaf of the Piper Betle and lime..
Birectangular :: Birectangular (a.) Containing or having two right angles; as, a birectangular spherical triangle..
Borecole :: Borecole (n.) A brassicaceous plant of many varieties, cultivated for its leaves, which are not formed into a compact head like the cabbage, but are loose, and are generally curled or wrinkled; kale..