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biohazard

noun bio·haz·ard \ ˈbī-ō-ˌha-zərd \
|Updated on: 10 Jun 2018

Definition of biohazard

: 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

\ˌbī-ō-ˈha-zər-dəs\ adjective

See biohazard defined for English-language learners

Examples of biohazard in a Sentence

  1. The gasoline spill created a serious biohazard.

Recent Examples of biohazard from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biohazard.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of biohazard

1965

in the meaning defined above

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BIOHAZARD Defined for English Language Learners

biohazard

noun

Definition of biohazard for English Language Learners

  • : a biological or chemical substance or situation that is dangerous to human beings and the environment

Medical Dictionary

biohazard

noun bio·haz·ard \ ˈbī-ō-ˌhaz-ərd, -ˈhaz- \

medical Definition of biohazard

: 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
—

biohazardous

play \-ˈhaz-ərd-əs\ adjective

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biohazard

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