thoraxes

/TH AO1 R AE0 K S AH0 Z/
noun
  1. 1

    The region of the mammalian body between the neck and abdomen as well as the cavity containing the heart and lungs.

  2. 2

    The middle of three distinct divisions in an insect, crustacean or arachnid body to which the legs are attached.

Source: https://en.wiktionary.org/wiki/thorax, https://en.wiktionary.org/wiki/thoraxes