Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun halon

1 sense of halon

Sense 1
halon -- (a compound in which the hydrogen atoms of a hydrocarbon have been replaced by bromine and other halogen atoms; very stable; used in fire extinguishers although it is thought to release bromine that depletes the ozone layer)
       => organic compound -- (any compound of carbon and another element or a radical)
       => pollutant -- (waste matter that contaminates the water or air or soil)