View your list of saved words. (You can log in using Facebook.)
Definition of SELF-HEAL
: a blue-flowered Eurasian mint (Prunella vulgaris) that is naturalized throughout North America and is held to have medicinal properties useful in herbal medicine
First Known Use of SELF-HEAL
Perennial weed (Prunella vulgaris) in the mint family, native to North America and widespread throughout the continent. Growing 6–14 in. (14–36 cm) tall, self-heal is often a low weed in lawns. The often-prostrate branches root readily wherever they touch soil. Tiny, two-lipped, lilac-coloured or white flowers are clustered into noticeable dense, spikes. Leaves have sparsely toothed or smooth margins. Regarded in medieval times as a cure-all, the dried leaves and flowers are still brewed for soothing sore throats.