/ Dictionary / Index B betel nut: Meaning and Definition of Find definitions for: be'tel nut" Pronunciation: [key] 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. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Betelgeuse betel palm Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language