Noun | 1.Jamaica quassia - similar to the extract from Quassia amaraPicrasma excelsa, Picrasma excelsum, bitterwood, Jamaica quassia - West Indian tree yielding the drug Jamaica quassiaquassia - a bitter compound used as an insecticide and tonic and vermifuge; extracted from the wood and bark of trees of the genera Quassia and Picrasma | | 2.Jamaica quassia - West Indian tree yielding the drug Jamaica quassiaPicrasma excelsa, Picrasma excelsum, bitterwoodbitterwood tree - any of various trees or shrubs of the family Simaroubaceae having wood and bark with a bitter tastegenus Picrasma, Picrasma - small genus of deciduous trees of tropical America and AsiaJamaica quassia - similar to the extract from Quassia amara |