deceleration

/ˌdiːseləˈreɪʃn/📚 24868
a decrease in speed; "the deceleration of the arms race"

noun [具体名词]减速

The deceleration gives the new medium a different refractive index.
减速使新介质获得不同的折射率。

-celer- swift,quick,speed 表示“快,速”deceleration n.减速(decelerate + ion 名词尾)
单词造句:
网友用“Deceleration”造句精选
The continent will almost surely experience a deceleration in growth. 该大陆几乎肯定会发生增长减速。