Scotch broom

noun

: a deciduous broom (Cytisus scoparius) of western Europe that is widely cultivated for its bright yellow or partly red flowers and that has become naturalized in North America

Word History

First Known Use

1798, in the meaning defined above

Medical Definition

Scotch broom

noun

ˈskäch- 

: a deciduous broom (Cytisus scoparius) of western Europe that contains the alkaloid sparteine, is the source of scoparius, and is widely cultivated for its bright yellow or partly red flowers