the bark of a South American apocynaceous tree, Geissospermum vellosii: source of a substance formerly used for treating malaria
Word origin
named after Jonathan Pereira (1804–53), English pharmacologist
pereira bark in American English
(pəˈrɛərə)
noun
the bark of any of several South American trees belonging to the genus Geissospermum, of the dogbane family, esp. that of G. vellosii, used in Brazil to allay fever
Word origin
[pereira ‹ NL, named after J. Pereira (1804–53), English professor of medicine]