methyl bromide

noun

: a poisonous gaseous compound CH3Br used chiefly as a fumigant against rodents, worms, and insects

Examples of methyl bromide in a Sentence

Recent Examples on the Web
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And more than 200 fumigation facilities had active permits to emit methyl bromide statewide during that eight-year span. Tony Briscoe, Los Angeles Times, 22 Jan. 2026 Acute doses of methyl bromide can be fatal; chronic and acute exposure increases the risk of prostate cancer. Chris Baraniuk, Wired, 16 July 2022 These include chlorofluorocarbons, which are found in air conditioners, refrigerators, and spray cans, halons, which are found in fire extinguishers, and methyl bromide, which is used to kill weeds, insects, and other pests. Popular Science, 18 May 2020 But the province’s chemical science laboratory and officials of Karachi Port Trust have blamed the illnesses and fatalities on the release of methyl bromide, which is used in the fumigation of large vessels at the port. Salman Masood, BostonGlobe.com, 19 Feb. 2020

Word History

First Known Use

1871, in the meaning defined above

Time Traveler
The first known use of methyl bromide was in 1871

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Cite this Entry

“Methyl bromide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/methyl%20bromide. Accessed 5 Jul. 2026.

Medical Definition

methyl bromide

noun
: a poisonous gaseous compound CH3Br used chiefly as a fumigant against rodents, worms, and insects

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