Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Biology, Environment & wastebiohazardbi‧o‧haz‧ard /ˈbaɪəuˌhæzəd $ ˈbaɪəuˌhæzəd/ noun [countable] medical something biological, such as a type of bacteria or a virus, that is dangerous to people’s health ldoceonline.com
