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Webster 1913 Edition

Noun.

(Bot.)

A common plant (

Saponaria officinalis

) of the Pink family; – so called because its bruised leaves, when agitated in water, produce a lather like that from soap. Called also

Bouncing Bet

Noun.

A plant of the genus Saponaria.

soapwort ‎(countable and uncountable, plural soapworts)

herb