subjected to a physical (or chemical) treatment or action or agent; the sludge of treated sewage can be used as fertilizer; treated timbers resist rot; treated fabrics resist wrinkling'

given medical care or treatment; a treated cold is usually gone in 14 days; if left untreated it lasts two weeks'

made hard or flexible or resilient especially by heat treatment; a sword of tempered steel; tempered glass

[ Syn: tempered , hardened , toughened ]