Meaning & use

flame retardant

noun, adjective·Advanced

Last updated

UK/ˈfleɪm rɪˌtɑːdənt/
US/ˈfleɪm rɪˌtɑːrdənt/

Meanings

  1. nouncountabletechnical

    A substance added to materials to make them burn more slowly or resist catching fire.

    Grammar: Countable; can be used in the plural, e.g., 'various flame retardants'.

    Patterns

    • add a flame retardant to something
    • use flame retardants in something

    The manufacturer added a flame retardant to the fabric to meet safety standards.

    Many flame retardants contain chemicals that can be harmful to the environment.

    Researchers are developing new flame retardants that are less toxic.

  2. adjectivebefore a nountechnical

    Describing a material that has been treated to resist catching fire or to burn slowly.

    Grammar: Used before a noun, often hyphenated: 'flame-retardant material'.

    Patterns

    • flame-retardant material
    • flame-retardant clothing

    Firefighters wear flame-retardant suits to protect themselves from intense heat.

    The curtains are made of flame-retardant fabric for safety in public buildings.

    All children's pajamas must be flame retardant by law.

Word forms

pluralflame retardants

Common combinations

flame-retardant material
The seats on the train are covered in flame-retardant material.
flame-retardant clothing
Workers in the oil industry must wear flame-retardant clothing.
add a flame retardant
They add a flame retardant to the plastic during production.
flame-retardant properties
The new foam has excellent flame-retardant properties.

Synonyms and how they differ

fire-resistant
Similar but often means able to withstand fire for a certain time without burning; 'flame retardant' emphasizes slowing the spread of fire.
fireproof
Stronger: completely unable to burn. 'Flame retardant' materials can still burn, but more slowly.

Opposites

Word family

retardant noun
A substance that slows down a process; often used in combination, e.g., 'fire retardant'.

Commonly confused: flame retardant or flameproof?

flame retardant vs flameproof

Means completely resistant to fire, while 'flame retardant' means it resists but may still burn.

Practice

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