buckthorn has definitions from the field of botany
1
[ noun ] (botany) any shrub or small tree of the genus Bumelia
2
[ noun ] (botany) a shrub or shrubby tree of the genus Rhamnus; fruits are source of yellow dyes or pigments
3
[ noun ] (botany) an Old World plantain with long narrow ribbed leaves widely established in temperate regions

Related terms

plantain

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