ferulaPronunciation: /ˈfɛrjʊlə/Definition of ferula noun 1a tall large-leaved Eurasian plant of a genus that includes asafoetida and its relatives. Genus Ferula, family Umbelliferae 2rare term for ferule.Origin: late Middle English: from Latin, 'giant fennel, rod'ferula in other Oxford dictionaries Definition of ferula in the US English dictionary