DEMUTUALIZE Meaning of DEMUTUALIZE in English or demutualise di:'mju:tʃʊəlʌɪz , -tjʊə-■ verb change (a mutual organization such as a building society) to one of a different kind.Derivativesdemutualization noun Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004