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
Some of these attractions in the maze include a biohazard unit, a butcher shop, a poacher camp and a witch’s cauldron.
—
Abby Hamblin, San Diego Union-Tribune, 16 Oct. 2025
The dogs, which were restricted to the property by wireless perimeter collars, were euthanized due to the biohazard of consuming human remains, the outlet said.
—Raven Brunner, PEOPLE, 12 Oct. 2025
In hazardous settings—such as disaster zones, mines or biohazard facilities—humanoids can undertake dangerous tasks, thereby reducing the risk to humans.
—Ashutosh Saxena, Forbes.com, 29 Aug. 2025
Throughout the sampling experience, Prather recalled that her team members all wore respirators and biohazard suits for their personal protection.
—Sharon Udasin, The Hill, 28 Aug. 2025
See All Example Sentences for biohazard
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Abby Hamblin, San Diego Union-Tribune, 16 Oct. 2025
The dogs, which were restricted to the property by wireless perimeter collars, were euthanized due to the biohazard of consuming human remains, the outlet said.
—Raven Brunner, PEOPLE, 12 Oct. 2025
In hazardous settings—such as disaster zones, mines or biohazard facilities—humanoids can undertake dangerous tasks, thereby reducing the risk to humans.
—Ashutosh Saxena, Forbes.com, 29 Aug. 2025
Throughout the sampling experience, Prather recalled that her team members all wore respirators and biohazard suits for their personal protection.
—Sharon Udasin, The Hill, 28 Aug. 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 25 Oct. 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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