DictionarymuslinCotton fabric
noun

muslin

MUZ-lin/ˈmʌzlɪn/

A plain-woven cotton fabric, often light and loosely woven.

The loosely folded muslin reveals its thin, plain-woven cotton structure.

A length of plain, lightweight, unbleached cotton muslin partly folded and loosely draped, with a lifted fold revealing its thinness and an exposed raw edge showing its simple woven construction.
Etymology

Mussolina names cloth after Mosul, where it was made. The fabric name shifted from a luxurious, delicately woven material to the ordinary lightweight cotton cloth meant today.

In context

Gentleman's Gazette3:18
It's basically a very thin cotton muslin fabric with a range of checks, usually multiple different colors
How to Wear Madras - The Preppy Summer Fabric for Men

More examples

  • The tailor tests the pattern with inexpensive muslin.
  • We strain the broth through a piece of muslin.
  • These muslin curtains let in plenty of light.

Similar words

gauze
Usually more open and transparent, often used for medical dressings.
cheesecloth
Typically more loosely woven, especially for straining food.