释义 |
soapbark \ˈ ̷ ̷ˌ ̷ ̷\ noun 1. a. also soapbark tree : a Chilean tree (Quillaja saponaria) with shining leaves and terminal white flowers b. : the bark of the soapbark tree that because of its saponin content yields a soapy lather and is used in cleaning and in emulsifying oils — compare quillaic acid 2. also soapbark tree : any of several tropical American trees or shrubs of the genus Pithecolobium (as P. bigeminum) having saponaceous bark |