| the astringent kernel of the seed of the betel palm, chewed in many tropical regions in combination with slaked lime and the leaves of the betel plant. |
| areca nut n. See betel nut. |
betel nut also be·tel·nut  (bēt'l-nŭt')  n. The seed of the betel palm, chewed with betel leaves, lime, and flavorings as a mild stimulant. Also called areca nut. |
