To draw back; draw in: sometimes opposed to protract or protrude: as, a cat retracts her claws.To withdraw; remove.To take back; undo; recall; recant: as, to retract an assertion or an accusation.To contract; lessen in length; shorten.To draw or shrink back; draw in; recede.To undo or unsay what has been done or said before; recall or take back a declaration or a concession; recant.n. A falling back; a retreat.n. A retractation; recantation.n. In farriery, the prick of a horse's foot in nailing a shoe, requiring the nail to be withdrawn.