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| chi·tin [ ktin ] |
noun |
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| Definition: |
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protective outer covering: a tough semitransparent substance that forms part of the protective outer casing cuticle of some insects and other arthropods, and the cell walls of some fungi
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| [Mid-19th century. Via French chitine< Greek khitōn "tunic"] |
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 chi·tin·oid adjective |
| chi·tin·ous adjective |
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