Composed of or containing both chitin and calcium or calcareous material, as seen in some shells and exoskeletons.
From chitin plus Latin calcarius (from calx 'calcium') plus -ous. A technical scientific term combining morphemes describing mineral composition.
This mouthful of a word describes the architectural genius of shells and crustacean exoskeletons—by combining flexible chitin with hard minerals, nature created the ultimate armor that's both protective and mobile!
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