treated meaning and definition

TREATED adjective

Definition of treated (adjective)

1. 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"
   • antonym: untreated
2. given medical care or treatment
   • "a treated cold is usually gone in 14 days; if left untreated it lasts two weeks"
   • antonym: untreated
3. made hard or flexible or resilient especially by heat treatment
   • "a sword of tempered steel"; "tempered glass"
   • synonyms: hardened, tempered, toughened
   • antonym: unhardened