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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.

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 has also allowed the site to temporarily store and move some hazardous and clinical waste, though these materials will not be burned at the energy recovery facility.

From BBC • Jun. 4, 2026

We are in a cycle where instant success is expected, and that has made things even more hazardous.

From BBC • May 26, 2026

More than 785 first responders and other emergency personnel, including firefighters, hazardous materials experts, public health officials and environmental scientists, have been mobilized since Friday, Newsom’s office said.

From Los Angeles Times • May 25, 2026

The theory is that work inside a space suit is not hazardous, because you are wearing a space suit.

From "The Hot Zone" by Richard Preston




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