cellulose

noun

cel·​lu·​lose ˈsel-yə-ˌlōs How to pronounce cellulose (audio)
-ˌlōz
: a polysaccharide (C6H10O5)x of glucose units that constitutes the chief part of the cell walls of plants, occurs naturally in such fibrous products as cotton and kapok, and is the raw material of many manufactured goods (such as paper, rayon, and cellophane)

Examples of cellulose in a Sentence

Recent Examples on the Web
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Known for its scientific solution to the mounting mountain of textile waste, Eeden’s chemical recycling technology recovers pure cellulose and polyethylene terephthalate (PET) building blocks from cotton-polyester blends. Alexandra Harrell, Sourcing Journal, 19 May 2025 Individual wood fibers are made up mainly of cellulose, along with a binder material known as lignin. Ben Coxworth, New Atlas, 25 Mar. 2025 Bamboo viscose is made from a pulp that is then turned into fibers, while rayon is made of cellulose spun into the fibers. Nora Taylor, Architectural Digest, 20 Feb. 2025 The material itself is derived from Nordic tree cellulose and designed for targeted pollutant capture, including key nitrogen oxides like nitric oxide (NO) and nitrogen dioxide (NO2). Jamie Hailstone, Forbes.com, 7 Apr. 2025 See All Example Sentences for cellulose

Word History

Etymology

French, from cellule living cell, from New Latin cellula

First Known Use

1848, in the meaning defined above

Time Traveler
The first known use of cellulose was in 1848

Browse Nearby Words

Cite this Entry

“Cellulose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cellulose. Accessed 27 Jun. 2025.

Kids Definition

cellulose

noun
cel·​lu·​lose ˈsel-yə-ˌlōs How to pronounce cellulose (audio)
: a complex carbohydrate that is the chief part of the cell walls of plants and is commonly obtained as a white stringy substance from vegetable matter (as wood or cotton) which is used in making various products (as rayon and paper)
cellulosic
ˌsel-yə-ˈlō-sik
adjective

Medical Definition

cellulose

noun
cel·​lu·​lose ˈsel-yə-ˌlōs, -ˌlōz How to pronounce cellulose (audio)
: a polysaccharide (C6H10O5)x of glucose units that constitutes the chief part of the cell walls of plants, occurs naturally in such fibrous products as cotton and kapok, and is the raw material of many manufactured goods (as paper, rayon, and cellophane)

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