Definition of "protectant" []

• One that protects: applied a protectant to the raw wood. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "SHORT, J.E. and ABRAHAM, L. (1991) Large-scale evaluation of the insect juvenile hormone analogue fenoxycarb as a long-term protectant of stored wheat."
• "COGBURN, R.R. (1988) Fenoxycarb as a long term protectant for stored rough rice."
• "Is it possible to get it treated with some kind of protectant, like Scotchgarding the sofa?"