soapbark

[ sohp-bahrk ]
/ ˈsoʊpˌbɑrk /

noun

a Chilean tree, Quillaja saponaria, of the rose family, having evergreen leaves and small, white flowers.
the inner bark of this tree, used as a substitute for soap.

Origin of soapbark

First recorded in 1860–65; soap + bark2

Words nearby soapbark

soap flakes, soap opera, soap pad, soap plant, soap powder, soapbark, soapberry, soapberry family, soapbox, soaper, soapfish

British Dictionary definitions for soapbark

soapbark
/ (ˈsəʊpˌbɑːk) /

noun

Also called: quillai a W South American rosaceous tree, Quillaja saponaria, with undivided evergreen leaves and small white flowers
Also called: quillai bark the inner bark of this tree, formerly used as soap and as a source of saponin
any of several trees or shrubs that have a bark similar to this