euphorbia

eu·phor·bia

noun \yu̇-ˈfȯr-bē-ə\

Definition of EUPHORBIA

1

: a large genus of plants of the spurge family that have a milky juice and flowers included in an involucre which surrounds a group of several staminate flowers and a central pistillate flower and that include a number which have been used medicinally

2

: any plant of the genus Euphorbia; also : any of various other plants that belong to the spurge family