Definition of cellulose
: 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)
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Merriam-Webster unabridged
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Time Traveler for cellulose
The first known use of cellulose was in 1848
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