Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “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)
Focus on the pronunciation of retardant

More definitions for “retardant”

Translations of “retardant”

Word of the Day


the skill or activity of preparing and cooking food

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More