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Definition of Betel nut

Betel nut: The nut of the Areca palm tree and an ingredient of betel nut quid, an addictive mix chewed in some Pacific and Asian cultures. Its use is associated with aggressive oral cancers affecting especially the inner lining of the cheeks and lips are the primary tumor sites. Other sites include the tongue, lower lip, tonsil and floor of the mouth.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=38392
Last Editorial Review: 6/14/2012

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