n : a person of subnormal intelligence [syn: idiot, imbecile, cretin, moron, changeling, half-wit]
v 1: slow the growth or development of [syn: check]
2: cause to move more slowly or operate at a slower rate; "This
drug will retard your heart rate"
3: lose velocity; move more slowly; "The car decelerated" [syn: decelerate, slow, slow down, slow up] [ant: accelerate]