Retardation - Definition
retardation
n 1: a decrease in rate of change; "the deceleration of the arms
race" [syn: deceleration, slowing, retardation] [ant:
acceleration]
2: the extent to which something is delayed or held back
3: any agent that retards or delays or hinders; "flame-
retardant" [syn: retardant, retardent, retardation]
4: lack of normal development of intellectual capacities [syn:
retardation, mental retardation, backwardness,
slowness, subnormality]
5: the act of slowing down or falling behind [syn: slowdown,
lag, retardation]