Halon definitions

hā'lŏn
Any of several halocarbons used as fire-extinguishing agents.
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Any of various halocarbons, esp. those containing bromine, used in fire extinguishers, fertilizers, etc. and thought to harm the ozone layer.
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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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(organic chemistry) A hydrocarbon in which one or more hydrogen atoms have been replaced by halogens.
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Origin of halon

Blend of halogen and carbon