from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The hard integument of crustaceans.
  • n. sclerenchyma

from the GNU version of the Collaborative International Dictionary of English

  • n. The hard integument of Crustacea.
  • n. Sclerenchyma.

from The Century Dictionary and Cyclopedia

  • n. The hard skeletal element or chitinous test of any somite or segment of the body of an arthropod.
  • n. In the corals, one of the calcareous elements occurring detached in the ectoderm and mesoderm or forming compact tubes which are periodically partitioned off into stories with the upward growth of the animal.


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