a Eurasian caryophyllaceous plant, Saponaria officinalis, having rounded clusters of fragrant pink or white flowers and leaves that were formerly used as a soap substitute
Also called: bouncing Bet
soapwort in American English
(ˈsoʊpˈwɜrt)
noun
any of a genus (Saponaria) of plants of the pink family, with bright, colorful flowers and sap that forms a lather with water, including the bouncing Bet