Peanut, Monkey Nut or Groundnut is an underground legume. The peanut can be eaten raw or roasted. Peanuts are mainly used for peanut butter or peanut oil. Peanuts are also roasted, salted and eaten as a snack.
Dowell, P., Bailey, A. (1980) The Book of Ingredients, Dorling Kindersley. ISBN 0718119150.