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.
Use "roughen" in a sentence
"Nail primers, which are used to roughen the surface of the fingernail, are among the most dangerous products."
"Some mechanics buy narrow wire brushes to even and roughen the glue surface."
"After firing a pot, they would roughen its surface and apply chaute, a mixture of charcoal, oil of sage seed and a glue-like substance from the camote tuber."