treated

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”

(of a specimen for study under a microscope) treated with a reagent or dye that colors only certain structures

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”