Also found in: Medical.


tr.v. pre·treat·ed, pre·treat·ing, pre·treats
To treat (wood or fabric, for example) beforehand.

pre·treat′ment n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


vb (tr)
to treat in advance
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
As for white wine, soak the clothing in cool water for thirty minutes and pretreat with a stain remover.
The animals were pretreated (Pretreat) iv with saline (C), 1 or 5 mg/kg atropine sulfate (AT1 and AT5, respectively) and, after 30 min, treated (Treat) iv with vehicle (V), 0.25 U or 1 U/kg insulin (0.25U and 1U, respectively).
The use of flotation to pretreat wastewater from animal fat rendering, Polish Journal of Chemical Technology 7(2): 94-99.
BioCat can be used to pretreat contaminated soils and waste and can cleanse most contaminated materials so they can be recycled, used as a renewable energy source, incinerated or commercially composted - preventing the need for a costly landfill site trip.
It can pretreat both residential and commercial wastewater.
They can test them under extreme environmental conditions and can pretreat and test samples to determine the effects of various pretreatments.
As a result, dual-electrode corona units can pretreat film in-line with high-speed printing presses.
Washington, Jan 23 (ANI): Researchers at Michigan State University have developed a process to pretreat corn-crop waste before conversion into ethanol, which could help cut the cost of making biofuels from cellulose, as extra nutrients won't have to be added.
Given those odds, physicians may hesitate to pretreat all such patients with antidepressants, which have their own side effects, Meyers warns.