halon

American  

[hay-lahn] / ˈheɪˌlɑn /

noun

plural

halons

1. Chemistry. any of a group of gaseous compounds formed from hydrocarbons whose hydrogen atoms are replaced by bromine and other halogens, once used extensively for extinguishing fires, a use now largely restricted due to their extreme potential for ozone depletion.

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halon British  

/ ˈhælɒn /

noun

1. any of a class of chemical compounds derived from hydrocarbons by replacing one or more hydrogen atoms by bromine atoms and other hydrogen atoms by other halogen atoms (chlorine, fluorine, or iodine). Halons are stable compounds that are used in fire extinguishers, although they may contribute to depletion of the ozone layer

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halon Scientific  

/ hā′lŏn /

1. Any of several compounds consisting of one or two carbon atoms combined with bromine and one or more other halogens. Halons are gases and are used as fire-extinguishing agents. They are between three and ten times more destructive to the ozone layer than CFCs are.

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Example Sentences

"When you have an open system where the casing is not intact, halon can't do its job."

From US News • Sep. 11, 2015

Triggered by a rise in temperature, fire suppression systems unleash halon until the gas reaches 5 percent of the air in the cargo compartment.

From Washington Times • May 1, 2015

It has long been accepted by aviation authorities that this level of halon is enough to put out most fires, including a lithium-ion battery fire.

From Washington Times • May 1, 2015

We put No. 3 to bed with the snap and click of cutoff levers, generator switches and a goodnight spray of the halon bottle.

From Salon • Oct. 5, 2010

The Tagálogs called such true slaves sanguiguilir, and the Visayans halon.

From The Philippine Islands, 1493-1898 - Volume 40 of 55 1690-1691 Explorations by Early Navigators, Descriptions of the Islands and Their Peoples, Their History and Records of the Catholic Missions, as Related in Contemporaneous Books and Manuscripts, Showing the Political, Economic, Commercial and Religious Conditions of Those Islands from Their Earliest Relations with European Nations to the Close of the Nineteenth Century by Blair, Emma Helen