ACIDULATE Meaning of ACIDULATE in English [ ə'sɪdjʊleɪt ]■ verb make slightly acidic.Derivatives~d adjectiveacidulation noun OriginC18: from L. acidulus (from acidus 'sour') + -ate 3 . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004