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.

seed of a palm plant, chewed as a stimulant. Also called an areca nut.

"beetle-nut" -- Vietnamese chew the nut from the betel palm for its mild narcotic effect and lots of dark red spit. If chewed for months or years, it turns the teeth black -- not attractive. Some Vietnamese men chewed betel, but it was more often used by women, especially in the countryside.

n. the seed of the betel palm, also known as the areca nut (Areca catechu). When chewed upon, its flavor serves as a mild stimulant. It is popular among local populations in the islands of the Pacific [..]

Betel chewing is widely practised in some parts of Asia and the Pacific islands. Betel (or areca) nut, the large seed of an Asian palm tree Areca catechu,