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Webster 1913 Edition

Stoneroot

Stone′rootˊ

,

Noun.

(Bot.)

A North American plant (

Collinsonia Canadensis

) having a very hard root; horse balm. See

Horse balm

, under

.

Definition 2024

stoneroot

stoneroot

English

Noun

stoneroot ‎(uncountable)

Collinsonia canadensis, a perennial medicinal herb in the mint family, with a very hard root.