Definitions

from The Century Dictionary.

  • noun In Crustacea, the thorax; distinguished from cephalon (head) and pleon (abdomen).

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The thorax of a crustacean, between the head (cephalon) and abdomen (pleon).

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek περί (peri, "around") + ιέναι (ienai, "to go").

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Examples

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