A type of prestressing in which reinforcing tendons stretched to a desired tension and then covered by concrete poured into the form. Once the concrete cures and the forms are removed, the tension of tendon is transfered to the concrete increasing its compression and creating a positive camber. This produces a reinforced concrete beam which is able to withstand greater loads without deflection as compared to unreinforced beams of similar dimensions. Compare to posttension. Also, cable hangers (or suspenders) used to support a bridge deck are commonly pretensioned before being attached to the deck.