Meaning of PRESTRESS in English

I. transitive verb Date: 1934 to introduce internal stresses into (as a structural beam) to counteract the stresses that will result from applied load (as in incorporating cables under tension in concrete), II. noun Date: 1934 the stresses introduced in ~ing, the process of ~ing, the condition of being ~ed

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.