re·tar·da·tion (rē
tär-dā
shən)
n.► ■ The act or process of retarding.
■ The condition of being retarded.
► The extent to which something is held back or delayed.
► Something that retards; a delay or hindrance.
► Mental retardation.
► Music. A diminishing of tempo; a retard.
[TahlilGaran] American Dictionary ▲