biohazard
noun
bio·haz·ard
ˈbī-ō-ˌha-zərd
: a biological agent or condition that is a hazard to humans or the environment
also
: a hazard posed by such an agent or condition
biohazardous
adjective
ˌbī-ō-ˈha-zər-dəs
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Merriam-Webster unabridged
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