/booh"kooh, byooh"kyooh/ , n.
any of several southern African citrus shrubs of the genus Agathosma or the genus Diosma, esp. A. betulina, A. crenulata, or D. ericoides, whose leaves yield a dark-colored oil formerly used as a urinary antiseptic and mild diuretic.
[ 1725-35; boegoe ) boggoa (1668) ]