MYCOSIS Meaning of MYCOSIS in English [ mʌɪ'kəʊsɪs ]■ noun ( plural mycoses -si:z ) a disease caused by infection with a fungus, such as thrush.Derivativesmycotic -'kɒtɪk adjective Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004