Adjective
pre-stressed (comparative more pre-stressed, superlative most pre-stressed)
(engineering, architecture) Of a structural member, having stress already applied during the manufacturing process in the opposite direction to the stress expected in use.
pre-stressed concrete
It was thought to be possibly the largest block of privately owned apartments under one roof in Britain at the time it was built, and the first to employ pre-stressed concrete. Source: Internet
Two reinforced concrete pillars support a pre-stressed steel net onto which steel plates are attached. Source: Internet