WordReference Random House Unabridged Dictionary of American English © 2026
mad•wort
(mad′wûrt′, -wôrt′),USA pronunciation n.
- Plant Biologya mat-forming plant, Aurinia saxatilis (or Alyssum saxatille), of the mustard family, having spatulate leaves and open clusters of pale yellow flowers.
- mad + wort2 1590–1600