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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

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

The updated permit also allows the site to temporarily store and move some hazardous and clinical waste, although these materials will not be burned there.

From BBC • Jun. 7, 2026

A contracted hazardous materials hauler already removed a portion of the neutralized MMA chemical off site on May 29, health officials said, and wastewater is being analyzed for proper disposal.

From Los Angeles Times • Jun. 4, 2026

And although it is hazardous to assume any of this had formative effects on his character, it is equally an exaggeration to say that Eratosthenes grew up breathing an atmosphere of pure royalist docility.

From "Circumference" by Nicholas Nicastro




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