Definition of "pretreatment" [pretreatment]

• Any treatment received before some other process. (noun)

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• ""EPA can at any time set additional standards for what we call pretreatment, for waste that may go to a treatment plant," Ms. Jackson said."
• "The first step, also called pretreatment, concentrates mainly on the removal of solids."
• "This step is called pretreatment, and it doesn't get nearly the attention that the later steps in the biofuel process do, the wizardry of cutting the cellulose into sugars and turning those resulting sugars into fuels."