retard

n : a person of subnormal intelligence [syn: {idiot}, {imbecile},

{cretin}, {moron}, {changeling}, {half-wit}]

v 1: cause to move more slowly or operate at a slower rate; "This

drug will retard your heart rate"

2: slow the growth or development of [syn: {check}]

3: lose velocity; move more slowly; "The car decelerated" [syn:

{decelerate}, {slow}, {slow down}, {slow up}] [ant: {accelerate}]