retarder

/ri-tahr-der/US // rɪˈtɑr dər //UK // (rɪˈtɑːdə) //

缓速器,缓凝剂,缓释器,延缓器

Definitions

n.名词 noun

1
- : a person or thing that retards.
- : Chemistry. any substance added to rubber to delay or prevent vulcanization.any substance added to delay a process.
- : Building Trades. an admixture of concrete or plaster that retards its set.