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Definitions

hazardous

[haz-er-duhs] / ˈhæz ər dəs /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Tests revealed the water is contaminated with nitrate, which can come from fertilizer, animal manure or human sewage, and 1,2,3-trichloropropane, a hazardous chemical that was widely used in pesticides years ago.

From Los Angeles Times • Jun. 10, 2026

Hinging a film on one big narrative element is already a hazardous decision.

From Salon • Jun. 10, 2026

Paul O'Dwyer, Andrea Powell, Morgan Rogers and Nicola Wheatley died after paddleboarding in "extremely hazardous conditions" on the Western Cleddau river in Haverfordwest, Pembrokeshire, in October 2021.

From BBC • Jun. 8, 2026

A year earlier, the company settled with the EPA over allegations that it had improperly stored ignitable hazardous waste at a facility near San Diego.

From Los Angeles Times • May 26, 2026

Eventually they also made hazardous supply flights to the partisans, the guerrilla groups who were fighting against the Germans in the Bryansk Forest near the Russian border with Ukraine.

From "A Thousand Sisters" by Elizabeth Wein




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