Main entry: tempered, toughened, treated, hardened
Definition: made hard or flexible or resilient especially by heat treatment
Usage: a sword of tempered steel; tempered glass
Main entry: treated
Definition: subjected to a physical (or chemical) treatment or action or agent
Usage: the sludge of treated sewage can be used as fertilizer; treated timbers resist rot; treated fabrics resist wrinkling
Main entry: treated
Definition: given medical care or treatment
Usage: a treated cold is usually gone in 14 days; if left untreated it lasts two weeks