減速

げんそく

deceleration

減速材

げんそくざい

moderator

急減速

きゅうげんそく

sudden declaration; rapid deceleration; sharp slowdown

変速比

へんそくひ

transmission ratio; gear ratio

景気減速

けいきげんそく

economic slowdown

減速装置

げんそくそうち

reduction gear

減

げん

reduction

比

ひ

ratio, proportion

減収減益

げんしゅうげんえき

decrease in income and profit

速

そく

gear, speed (as in 4 speed automatic transmission and such)

失速速度

しっそくそくど

stalling speed

速度 / 速さ

そくど / はやさ

velocity

減色

げんしょく

reduced colours, reduced colors

減感

げんかん

desensitization, hyposensitization

激減

げきげん

dropping sharply, decreasing rapidly

減給

げんきゅう

pay cut, salary cut

急減

きゅうげん

sudden decrease

減退

げんたい

decline, ebb, failure, decay, decrease, loss

減額

げんがく

reduction, diminution, abatement