biohazard

US /ˌbaɪ.oʊˈhæz.ɚd/
UK /ˌbaɪ.oʊˈhæz.ɚd/
"biohazard" picture
1.

a risk of exposure to harmful biological agents

:
The spilled liquid was marked with a biohazard symbol.
Proper disposal of medical waste is crucial to prevent biohazards.