betel palm (nut)

be·tel palm (nut)

(bē'tăl pawlm nŭt) (Areca catechu) Widely used agent to induce general stimulation (the active ingredient is arecoline); can elicit disorders of the oral cavity; causes severely unattractive discoloration of gums and teeth; suggested link with induction of Type 2 diabetes.
Synonym(s): areca nut, paan.