Meaning of buchu

bu•chu

Pronunciation: (b'k, by'ky), [key]
— n.
  1. 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.