echinaceaEnglishOxford New American Dictionaryechinacea /ˌekəˈnāSHə, ˌɛkəˈneɪʃə / ▸ noun a North American coneflower. It is used in herbal medicine, largely for its antibiotic and wound-healing properties. Genus Echinacea, family Compositae: several species, in particular the purple coneflower. – ORIGIN modern Latin, from Greek ekhinos ‘hedgehog’.