from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The abdomen or postabdomen of an arthropod.

from the GNU version of the Collaborative International Dictionary of English

  • n. The abdomen, or post-abdomen, of arthropods.

from The Century Dictionary and Cyclopedia

  • n. In certain crustaceans, as the amphipods, the last three segments of the pleon or abdomen. Compare mesosome and metasome.
  • n. In biology: The last morphological segment of the tail; the terminal somatome of a vertebrate. See gephyrocercal.
  • n. The post-thoracic region of the body of arthropods; the abdomen or postabdomen as distinguished from the cephalothorax, and as composed of a series of urosomites or uromeres.


uro- + -some (Wiktionary)


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