chitin

noun
chi·​tin | \ ˈkī-tᵊn How to pronounce chitin (audio) \

Definition of chitin

: a horny polysaccharide (C8H13NO5)n that forms part of the hard outer integument especially of insects, arachnids, and crustaceans

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Other Words from chitin

chitinous \ ˈkī-​tᵊn-​əs How to pronounce chitin (audio) , ˈkīt-​nəs \ adjective

Examples of chitin in a Sentence

Recent Examples on the Web One of the tunnels then fills with chitin and solidifies. Quanta Magazine, 21 June 2021 One of the tunnels then fills with chitin and solidifies. Quanta Magazine, 21 June 2021 One of the tunnels then fills with chitin and solidifies. Quanta Magazine, 21 June 2021 One of the tunnels then fills with chitin and solidifies. Quanta Magazine, 21 June 2021 One of the tunnels then fills with chitin and solidifies. Quanta Magazine, 21 June 2021 One of the tunnels then fills with chitin and solidifies. Quanta Magazine, 21 June 2021 That’s because butterflies’ chitin covering is strong—and the addition of the wax layer weakens it. Anil Oza, Science | AAAS, 22 June 2021 One of the tunnels then fills with chitin and solidifies. Quanta Magazine, 21 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chitin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of chitin

circa 1839, in the meaning defined above

History and Etymology for chitin

French chitine, from Greek chitōn

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Learn More About chitin

Time Traveler for chitin

Time Traveler

The first known use of chitin was circa 1839

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Dictionary Entries Near chitin

Chitimachan

chitin

chitinization

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Statistics for chitin

Last Updated

6 Sep 2021

Cite this Entry

“Chitin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chitin. Accessed 17 Oct. 2021.

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More Definitions for chitin

chitin

noun
chi·​tin | \ ˈkīt-ᵊn How to pronounce chitin (audio) \

Medical Definition of chitin

: a horny polysaccharide that forms part of the hard outer integument especially of insects, arachnids, and crustaceans

Other Words from chitin

chitinous \ ˈkīt-​ᵊn-​əs, ˈkīt-​nəs How to pronounce chitin (audio) \ adjective

More from Merriam-Webster on chitin

Britannica.com: Encyclopedia article about chitin

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