Definition of "fire-retardant" [fire-retardant•fire retardant]

• Hard to ignite. (adjective)
• A substance that makes an object resistant to burning. (noun)

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• "Police said when rescuers arrived, the victims were out of the plane and firefighters doused the leaking fuel with fire-retardant foam."
• "At the same time, after more talks with Nunes, Southern Mills developed an even less expensive fire-retardant material called Defender M."
• "One of my hobbies is lampworking, and an old sock stuffed with lambswool and then covered in a fire-retardant sleeve works well for cushioning my elbows when I work!!"