Advertisement

Advertisement

retardant

[ ri-tahr-dnt ]

noun

, Chemistry.
  1. any substance capable of reducing the speed of a given reaction.

adjective

  1. retarding or tending to retard (usually used in combination):

    fire-retardant construction materials.

retardant

/ rɪˈtɑːdənt /

noun

  1. a substance that reduces the rate of a chemical reaction

adjective

  1. having a slowing effect

Discover More

Other Words From

  • re·tardance re·tardan·cy noun

Discover More

Word History and Origins

Origin of retardant1

First recorded in 1635–45; retard + -ant

Advertisement

Word of the Day

firkin

[fur-kin ]

Meaning and examples

Start each day with the Word of the Day in your inbox!

By clicking "Sign Up", you are accepting Dictionary.com Terms & Conditions and Privacy Policies.

Advertisement

Advertisement

Advertisement

retardretardate

Browse

  • #
  • aa
  • bb
  • cc
  • dd
  • ee
  • ff
  • gg
  • hh
  • ii
  • jj
  • kk
  • ll
  • mm
  • nn
  • oo
  • pp
  • qq
  • rr
  • ss
  • tt
  • uu
  • vv
  • ww
  • xx
  • yy
  • zz