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thorax

tho·rax

thorax

pronunciation:
tho raeks
features:
Word Explorer
part of speech: noun
inflections: thoraces, thoraxes
definition 1: in humans and in animals with four limbs, the part of the body between the neck and the abdomen, including the ribs and the cavity that contains the heart and lungs; chest.
definition 2: the second or middle segment of an insect's body.
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See
  arthropod, body