retardant

(ri tärd'nt)

noun

something that retards; esp., a substance that delays a chemical reaction

adjective

that retards or tends to retard

See retardant in American Heritage Dictionary 4

adjective
Acting or tending to retard. Often used in combination: flame-retardant pajamas for children; a fire-retardant security chest.

Related Forms:

  • re·tarˈdant noun

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