Of a structural member, having stress already applied during the manufacturing process in the opposite direction to the stress expected in use.(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "pre-stressed" in a sentence
"Does it come pre-stressed so that it looks like it was handed down from my grandpa."
"Robert Israel's multistory prison cells and second-act dungeon genuinely look as though they're made of pre-stressed concrete, and Florence von Gerkan's modern costumes Eastern Europe during Communism are accurate and unfanciful."
"Basic shape and structural element of this hall are pre-stressed prefabricated reinforced concrete columns with the height up to 39 m."