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One that protects: applied a protectant to the raw wood.
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.


(Chemistry) a chemical substance that affords protection, as against frost, rust, insects, etc
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(prəˈtɛk tənt)

a substance, as a chemical spray, that provides protection, as against insects, frost, or rust.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Primarily used as a protectant, paint, or "organic coatings," can prevent corrosion, "dress up' the look of rough castings with different colors or textures, aid an end-user in quickly identifying similar-looking parts and even provide conductivity for grounding electricity.
The adult skin protectant, Carlesta, was unveiled this month at the National Association of Chain Drug Stores Marketplace Conference in New Orleans.
BCD can be used as a flavor carrier and flavor protectant at a level of 2 percent in products such as chewing gum, gelatin and puddings, dry soup mixes, flavored coffees and teas, compressed candies, processed cheese products, savory snacks and crackers, dry mixes for baked goods, and beverages prepared from dry mixes and breakfast cereals, according to Cerestar, co-petitioner for approval with Roquette America Inc., Keokuk, Iowa.
Spinosad, a reduced risk environment friendly insecticide, is increasingly being used as a grain protectant in different countries.
A lip protectant stick with SPF and vitamin E with sheer tone for
A sun UV protectant has been woven into their fabric.
Delta Kits is now the sole US Importer of the popular skin protectant product.
Coloured hair can often start to look dull and dry, so make sure you keep your new shade in tip-top condition with regular conditioning treatments - and always look after it with a good heat protectant, like Schwarzkopf Essence Ultime Crystal Shine Heat Protectant Spray, PS5.49.
& Conditioner, Reparative Shampoo & Conditioner, Color Lock Leave-In Protectant and 60-second deep treatment.
Salt-, fresh- and brackish water, acid rain, salt spray, you name it; whatever the condition, it's no match for Sharkhide Metal Protectant's jaws of victory.
The product contains an advanced formula including natural essential oils and extracts as well as an active skin protectant to provide the ultimate daily defense and comfort for dry, chapped lips, according to Blistex.