chinaberry noun3 •(US) The bead tree or azedarach, Melia azedarach, a deciduous tree in the mahogany family Meliaceae, native to India, southern China and Australia, or its fruit. •(US) The soapberry (genus Sapindus, especially Sapindus saponaria), native to the Americas.‘The toilet is out back directly behind the chinaberry tree.’ — 1968 •(US) Actaea rubra, a poisonous herbaceous flowering plant in the family Ranunculaceae, native to North America. formschinaberries