- any tropical American tree belonging to the genus Simaruba, of the quassia family, having pinnate leaves, a fleshy fruit, and a root whose bark contains an appetite stimulant.
- the bark of this family of trees and shrubs.
- any tropical American tree of the genus Simarouba, esp S. amara, having divided leaves and fleshy fruits: family Simaroubaceae
- the medicinal bark of any of these trees
