thorax

Etymology

From Latin thorax, from Ancient Greek θώραξ (thṓrax, “a breastplate, cuirass, corslet”).

noun

  1. (anatomy) The region of the mammalian body between the neck and abdomen as well as the cavity containing the heart and lungs.
  2. (entomology and arachnology) The middle of three distinct divisions in an insect, crustacean or arachnid body to which the legs are attached.

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