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biohazard

From Longman Dictionary of Contemporary English
Related topics: Biology, Environment & waste
biohazardbi‧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
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