celloidin

noun

cel·loi·din se-ˈlȯi-dᵊn

: a purified pyroxylin used chiefly in microscopy

Word History

Etymology

cellulose + -oid entry 1 + -in entry 1

First Known Use

1883, in the meaning defined above

Time Traveler

The first known use of celloidin was in 1883

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Style

“Celloidin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/celloidin. Accessed 7 Jul. 2026.

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Medical Definition

celloidin

noun

cel·loi·din se-ˈlȯid-ᵊn

: a purified pyroxylin used chiefly in microscopy

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celloidin

noun

Word History

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