Definition of fire-retardant adjective from the Oxford Advanced American Dictionary

 

fire-retardant

 adjective
adjective
NAmE//ˈfaɪər rɪˌtɑrdnt//
 
(also flame-retardant)[usually before noun]
 
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that makes a fire burn more slowly The chair had fire-retardant covers.
See the Oxford Advanced Learner's Dictionary entry: fire-retardant