Concrete reinforced by either pretensioning or posttensioning, allowing it to carry a greater load or span a greater distance than ordinary reinforced concrete.
Béton soumis à un effort permanent de compression au moyen d'armatures mises en tension avant toute application de charges.
A. Lauria, Tecnologie di base per la residenza, 2000, n. 4.37
Prestressed concrete is concrete that has had internal stresses introduced to counteract, to the degree desired, the tensile stresses that will be imposed in service. The stress is usually imposed by tendons of individual hard-drawn wires, cables of hard-drawn wires, or bars of high strength alloy steel.
Encyclopaedia Britannica, “prestressed concrete” ([Internet, 2018-09-23](https://www.britannica.com/technology/prestressed-concrete))
FranceTerme, "béton précontraint" ([Internet, 2017-08-08](http://www.culture.fr/franceterme/result?francetermeSearchTerme=b%C3%A9ton+pr%C3%A9contraint&francetermeSearchDomaine=0&francetermeSearchSubmit=rechercher&action=search))