what is pepper
Medical Definition of PEPPER. 1. a: a woody Indian vine of the genus Piper (P. nigrum) that is widely cultivated in the tropics for its red berries from which black pepper and white pepper are prepared b (1) : black pepper (2) : white pepper.2. : capsicum 2.efinition of PEPPER. 1. a: either of two pungent products from the fruit of an Indian plant (Piper nigrum) that are used chiefly as condiments: (1) : black pepper (2) : white pepper.