glassine

noun

glass·​ine gla-ˈsēn How to pronounce glassine (audio)
: a thin dense transparent or semitransparent paper highly resistant to the passage of air and grease

Examples of glassine in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Two closets in the hallway contained bags stuffed with fentanyl bricks and more than 1,000 glassine envelopes filled with the drug. Colin Mixson, New York Daily News, 11 Apr. 2026 Berardi was handcuffed and reportedly found with 40 glassine baggies containing a powdery substance as well as a prescription bottle with pills inside that did not match the label, police said. Justin Muszynski, Hartford Courant, 10 Jan. 2025 To produce glassine paper, sheets are ‘supercalendered’—run through the calendering process several times at different temperatures and pressures. Chris Burton, Outside Online, 27 Aug. 2021

Word History

First Known Use

1916, in the meaning defined above

Time Traveler
The first known use of glassine was in 1916

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Cite this Entry

“Glassine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glassine. Accessed 6 Jul. 2026.

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