ex officio /ˌɛks əˈfɪʃioʊ/adjective 1adverb 1 adjective1 •By virtue of the office that originated it, or of the title held.Duties include […] sitting as ex-officio member of the Board of Directors and all Board committees. — 1979 adverb1 •By virtue of the office that originated it, or of the title held.The President of the Republic of France is, ex officio, also prince of the dyarchy called Andorra.
