IPA: //ˈprɛstrɛst//
KK: /prɛsˈtrɛst/
Describing a material that has been subjected to stress before it is used, often to improve its strength and performance.
The prestressed concrete beams are designed to support heavy loads without cracking.
Prestressed → It is formed from "pre-" (meaning before) and "stress" (from Latin "stringere", meaning to draw tight). The word "prestressed" refers to materials that have been subjected to stress before they are used in construction, enhancing their strength.
Think of something being 'drawn tight' ('stress') before it is used, which is what 'prestressed' means.