chitin

[ kahy-tin ]

/ ˈkaɪ tɪn /

noun Biochemistry.

a nitrogen-containing polysaccharide, related chemically to cellulose, that forms a semitransparent horny substance and is a principal constituent of the exoskeleton, or outer covering, of insects, crustaceans, and arachnids.

Origin of chitin

1830–40; <French chitine<Greek chit(ṓn) tunic, chiton + French -ine-in²

OTHER WORDS FROM chitin

chi·tin·ous, chi·tin·oid, adjective

Words nearby chitin

chit, Chita, chital, chitarrone, chitchat, chitin, chitlin circuit, chitlins, chiton, chitosan, Chi-tse

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for chitin

The chitin of the shell is covered with silicious particles of diverse size.
Marine Protozoa from Woods Hole|Gary N. Calkins
If you had no bones, you would be glad to have your skin hardened with chitin.
The Insect Folk|Margaret Warner Morley
Transverse muscles, running parallel to the unyielding plates of chitin or horn could accomplish nothing.
The Whence and the Whither of Man|John Mason Tyler
Its head is probably too thickly coated with chitin to excite their discharge.
Freshwater Sponges, Hydroids & Polyzoa|Nelson Annandale

The cuticle is a dead substance, and is composed in large part of chitin.
Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4|Various

British Dictionary definitions for chitin

chitin

/ (ˈkaɪtɪn) /

noun

a polysaccharide that is the principal component of the exoskeletons of arthropods and of the bodies of fungi

Derived forms of chitin

chitinous, adjectivechitinoid, adjective

Word Origin for chitin

C19: from French chitine, from Greek khitōn chiton + -in

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for chitin

chitin

[ kīt′n ]

n.

A tough, protective, semitransparent polysaccharide forming the principal component of arthropod exoskeletons and the cell walls of certain fungi.

Other words from chitin

chi′tin•ous adj.

Scientific definitions for chitin

chitin

[ kīt′n ]

A tough, semitransparent substance that is the main component of the exoskeletons of arthropods, such as the shells of crustaceans and the outer coverings of insects. Chitin is also found in the cell walls of certain fungi and algae. Chemically, it is a nitrogenous polysaccharide (a carbohydrate).

单词	chitin
释义	chitin [ kahy-tin ] / ˈkaɪ tɪn / noun Biochemistry. a nitrogen-containing polysaccharide, related chemically to cellulose, that forms a semitransparent horny substance and is a principal constituent of the exoskeleton, or outer covering, of insects, crustaceans, and arachnids. Origin of chitin 1830–40; <French chitine<Greek chit(ṓn) tunic, chiton + French -ine-in² OTHER WORDS FROM chitin chi·tin·ous, chi·tin·oid, adjective Words nearby chitin chit, Chita, chital, chitarrone, chitchat, chitin, chitlin circuit, chitlins, chiton, chitosan, Chi-tse Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for chitin The chitin of the shell is covered with silicious particles of diverse size. Marine Protozoa from Woods Hole\|Gary N. Calkins If you had no bones, you would be glad to have your skin hardened with chitin. The Insect Folk\|Margaret Warner Morley Transverse muscles, running parallel to the unyielding plates of chitin or horn could accomplish nothing. The Whence and the Whither of Man\|John Mason Tyler Its head is probably too thickly coated with chitin to excite their discharge. Freshwater Sponges, Hydroids & Polyzoa\|Nelson Annandale The cuticle is a dead substance, and is composed in large part of chitin. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4\|Various British Dictionary definitions for chitin chitin / (ˈkaɪtɪn) / noun a polysaccharide that is the principal component of the exoskeletons of arthropods and of the bodies of fungi Derived forms of chitin chitinous, adjectivechitinoid, adjective Word Origin for chitin C19: from French chitine, from Greek khitōn chiton + -in Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for chitin chitin [ kīt′n ] n. A tough, protective, semitransparent polysaccharide forming the principal component of arthropod exoskeletons and the cell walls of certain fungi. Other words from chitin chi′tin•ous adj. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for chitin chitin [ kīt′n ] A tough, semitransparent substance that is the main component of the exoskeletons of arthropods, such as the shells of crustaceans and the outer coverings of insects. Chitin is also found in the cell walls of certain fungi and algae. Chemically, it is a nitrogenous polysaccharide (a carbohydrate). The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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