biohazard.
A biological hazard: a source of risk due to some biological factor such as bacteria or human waste.
Meaning & usage
A biological hazard: a source of risk due to some biological factor such as bacteria or human waste.
Where this word comes from
Etymology tree Proto-Indo-European *gʷeyh₃-der. Ancient Greek βῐ́ος (bĭ́os) Ancient Greek βῐο- (bĭo-)der. English bio- English hazard English biohazard From bio- + hazard.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.