Sechium
Sechium , noun
[New Latin: compare French séchion; perhaps formed from Greek {not transcribed} cucumber.]
(Botany) The edible fruit of a West Indian plant (Sechium edule) of the Gourd family. It is soft, pear-shaped, and about four inches long, and contains a single large seed. The root of the plant resembles a yam, and is used for food.