Definitions for soapberryˈsoʊpˌbɛr i, -bə ri
Random House Webster's College Dictionary
soap•ber•ryˈsoʊpˌbɛr i, -bə ri(n.)(pl.)-ries.
the fruit of any tropical or subtropical tree of the genus Sapindus, esp. S. saponaria: used as a substitute for soap.
the tree itself.
Origin of soapberry:
soapberry, soapberry tree(noun)
a tree of the genus Sapindus whose fruit is rich in saponin
Any woody plant of the genus Sapindus, which is eponymous of the Sapindaceae family
Most soapberries are tropical.
The fruit of such a plant, especially of the tree Sapindus saponaria
Soapberries are rich enough in saponin to be used as soap substitute, hence their name.
Origin: : the fleshy part of the fruit was used in washing linen.