Any of various sturdy cotton fabrics of plain weave, used especially for sheets.(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.
Use "muslin" in a sentence
"This slip is 100 percent cotton, thin muslin, and is surprisingly not hot."
"She had taken the lace and muslin from the basket, possibly to settle her nerves and wits, and was sewing upon it."
"To the 3x size sewer: take the pattern I recommended here and make it in muslin, m 90 "or 50" wide piece, double, and if it works you know the pattern fits."