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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.

Manufacturing batteries is “extremely energy intensive,” involves more dangerous chemicals and results in more hazardous waste.

From The Wall Street Journal • Mar. 18, 2026

In a blog post, the band's former press officer Stuart Bailie recalled telling the papers that a "pile up of snow on the venues makes it too hazardous" to play, because "a roof might collapse".

From BBC • Mar. 13, 2026

The finding provides strong evidence that a kinetic impactor could be used as a planetary defense method to redirect a potentially hazardous near-Earth object.

From Science Daily • Mar. 9, 2026

Black smoke billowed over the Iranian capital, with officials there warning of the hazardous health effects for residents.

From Los Angeles Times • Mar. 8, 2026

All kinds of hazardous clutter could be floating in your path—boards, driftwood, coconuts, ropes—and it wouldn’t have taken much to wreck the propeller blades on the old Evinrude.

From "Flush" by Carl Hiaasen