BIO- Meaning of BIO- in English bio- /baɪəʊ, baɪə $ baɪoʊ, baɪə/ AmE prefix [ Language: Greek ; Origin: bios 'way of life' ] relating to or using living things:bio-geneticsbiophysics Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012