Medical Dictionary

berberis

noun ber·ber·is \ˈbər-bə-rəs\

Medical Definition of BERBERIS

1
capitalized :  a large genus of shrubs (family Berberidaceae) that usually have prickly stems, yellow flowers, and red or blackish berries—compare mahonia
2
:  the dried rhizome and roots of some barberries of the genus Mahonia (especially M. aquifolium) that contain a number of alkaloids (as berberine and berbamine)

Browse

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears