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English definition of “retardant”

retardant

noun [C or U], adjective     /rɪˈtɑː.dənt/ US  /-ˈtɑːr-/
(a substance) that makes the progress or growth of something slower: Pot plants are commonly treated with (a) growth retardant so that they retain their shape. fire/flame retardant furniture (= furniture that does not burn easily)Preventing and impedingLimiting and restricting
(Definition of retardant nounadjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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