cellulose nitrate

noun

: any of several nitric-acid esters of cellulose used especially for making plastics and explosives : nitrocellulose
Cellulose nitrate film was introduced in 1887 and was used until about 1950. It is inherently unstable and highly flammable.Sally A. Buchanan et al.

Examples of cellulose nitrate in a Sentence

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Eventually Hyatt began playing around with cellulose nitrate—cotton treated with nitric and sulfuric acids—at his own peril, given that the compound was extremely flammable. Matt Simon, WIRED, 27 Oct. 2022 The warehouse is owned by the national film institute, Cinemateca, and houses South America's largest collection of films, some made of cellulose nitrate, a highly flammable material. DÉbora Álvares, Star Tribune, 29 July 2021 Because the drawings are extremely delicate, the team carefully dabbed their surfaces with sterile membranes made of cellulose nitrate and used gentle suction tubes to remove microbes without damaging the paper. Nora McGreevy, Smithsonian Magazine, 30 Nov. 2020 Kodak kept its technical leadership by introducing the first safety film (made of cellulose acetate, rather than of highly flammable cellulose nitrate) in 1908. IEEE Spectrum, 28 Aug. 2018 Ventilation and trapping are good strategies against cellulose acetate and cellulose nitrate, but the methods do not work on all plastics, Shashoua says. Sarah Everts, Scientific American, 1 Apr. 2016

Word History

First Known Use

1873, in the meaning defined above

Time Traveler
The first known use of cellulose nitrate was in 1873

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Cite this Entry

“Cellulose nitrate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cellulose%20nitrate. Accessed 6 Jul. 2026.

Medical Definition

cellulose nitrate

noun
: any of several esters of nitric acid formed by the action of nitric acid on cellulose (as paper, linen, or cotton) and used for making explosives, plastics, and varnishes

called also nitrocellulose

see guncotton, pyroxylin

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