Definition of "pretreated" []

• Simple past tense and past participle of pretreat. (verb)
• That has been subject to pretreatment (adjective)

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• "A control group of 40 patients were not pretreated."
• "Highways and busy roads in Maryland and Virginia were also pretreated and clear."
• "In the District, 200 trucks had pretreated bridges, ramps and elevated roads for much of Monday evening, leaving major thoroughfares such as Connecticut Avenue NW wet but easily passable."