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 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"