HYDROGENATE Meaning of HYDROGENATE in English [ hʌɪ'drɒdʒəneɪt , 'hʌɪdrədʒəneɪt ]■ verb [often as adjective ~d ] charge with or cause to combine with hydrogen.Derivativeshydrogenation noun Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004