Dictionary

soapbark

noun soap·bark \ˈsōp-ˌbärk\

Definition of SOAPBARK

:  a Chilean tree (Quillaja saponaria) of the rose family with glossy leaves and terminal white flowers; also :  its saponin-rich bark used in cleaning and in emulsifying oils

First Known Use of SOAPBARK

1861
Medical Dictionary

soapbark

noun soap·bark \ˈsōp-ˌbärk\

Medical Definition of SOAPBARK

1
:  a Chilean tree of the genus Quillaja (Q. saponaria) with shiny leaves and white flowers
2
:  the saponin-rich bark of the soapbark tree used in cleaning and in emulsifying oil—called also quillaja

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