Webster’s Revised Unabridged Dictionary · 1913
Meadowsweet
Mead′ow·sweet′, Mead′ow·wort′, n. (Bot.) The name of several plants of the genus Spiræa, especially the white- or pink-flowered S. salicifolia, a low European and American shrub, and the herbaceous S. Ulmaria, which has fragrant white flowers in compound cymes.