veratrum Syllabification: (ve·ra·trum)Pronunciation: /vəˈrātrəm/Definition of veratrum noun (plural veratrums) a plant of a genus that includes the false hellebores. Genus Veratrum, family Liliaceae Origin:modern Latin, from Latin, literally 'hellebore'veratrum in other Oxford dictionaries Definition of veratrum in the British & World English dictionary