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

in the meaning defined above

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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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