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
Examples of biohazard in a Sentence
The gasoline spill created a serious biohazard.
Recent Examples on the Web
Guests were encouraged to urinate in the showers and defecate in red plastic biohazard bags.
—
Randall Colburn, EW.com, 25 June 2025
When her arches collapse and her heels touch the floor, Barbie is treated with as much trepidation as a contagious biohazard by the other dolls.
—Leah Dolan, CNN Money, 24 May 2025
Indirect costs cover operational expenses necessary to maintain research safety and ethics, including utilities, administrative support, biohazard handling and regulatory compliance.
—Christine Coughlin, The Conversation, 9 May 2025
From there, her corpse is outfitted in this burial veil with the speed usually reserved for containing a biohazard.
—Kinsey Jasnoch, Vulture, 7 Mar. 2025
See All Example Sentences for biohazard
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Randall Colburn, EW.com, 25 June 2025
When her arches collapse and her heels touch the floor, Barbie is treated with as much trepidation as a contagious biohazard by the other dolls.
—Leah Dolan, CNN Money, 24 May 2025
Indirect costs cover operational expenses necessary to maintain research safety and ethics, including utilities, administrative support, biohazard handling and regulatory compliance.
—Christine Coughlin, The Conversation, 9 May 2025
From there, her corpse is outfitted in this burial veil with the speed usually reserved for containing a biohazard.
—Kinsey Jasnoch, Vulture, 7 Mar. 2025
See All Example Sentences for biohazard
Cite this Entry
“Biohazard.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biohazard. Accessed 14 Jul. 2025.
Copy CitationMedical Definition
biohazard
noun
bio·haz·ard
ˈbī-ō-ˌhaz-ərd, -ˈhaz-
: a biological agent or condition (as an infectious organism or insecure laboratory procedures) that constitutes a hazard to humans or the environment
also
: a hazard posed by such an agent or condition
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