Definitions
1.nounThe act of retarding or delaying; hindrance.
2.nounThe extent to which anything is retarded; the result of any retarding or delay; mental, social, or physical slowness.
3.nounExtreme stupidity.
4.nounThat which retards; an obstacle; an obstruction.
5.nounDeceleration; reduction in the magnitude of velocity.
6.nounA suspension which resolves upwards.