yohimbe Syllabification: (yo·him·be)Pronunciation: /yōˈhimbā, -bē/Definition of yohimbe noun a tropical West African tree of the bedstraw family, from which the drug yohimbine is obtained. Pausinystalia johimbe, family Rubiaceae Origin: late 19th century: a local wordyohimbe in other Oxford dictionaries Definition of yohimbe in the British & World English dictionary