guncotton

noun

gun·​cot·​ton ˈgən-ˌkä-tᵊn How to pronounce guncotton (audio)
: nitrocellulose
especially : an explosive highly nitrated product used chiefly in smokeless powder

Examples of guncotton in a Sentence

Recent Examples on the Web
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Cotton linters—the short fibers left on cottonseed after ginning—can be processed into nitrocellulose, a highly volatile, nitrogen-rich material known as guncotton that’s used as a primary ingredient in solid rocket propellants for ballistic missiles. Jasmin Malik Chua, Footwear News, 27 Apr. 2026 Nitrocellulose, also known as guncotton, is highly flammable. Elizabeth Kolbert, The New Yorker, 26 June 2023 This fires the detonating charge, which in turn fires the main charge of guncotton. Popular Mechanics Editors, Popular Mechanics, 8 Apr. 2021

Word History

First Known Use

1846, in the meaning defined above

Time Traveler
The first known use of guncotton was in 1846

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Cite this Entry

“Guncotton.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/guncotton. Accessed 20 May. 2026.

Medical Definition

guncotton

noun
gun·​cot·​ton ˈgən-ˌkät-ᵊn How to pronounce guncotton (audio)
: any of various cellulose nitrates
especially : an explosive consisting of a higher-nitrated product (as one containing at least 13.2 percent nitrogen)

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