thorax
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noun (plural thoraxes or thoraces |ˈTHôrəˌsēz| ) Anatomy & Zoology
the part of the body of a mammal between the neck and the abdomen, including the cavity enclosed by the ribs, breastbone, and dorsal vertebrae, and containing the chief organs of circulation and respiration; the chest.
〘医〙 胸部, 胸郭
Zoology the corresponding part of a bird, reptile, amphibian, or fish.
Entomology the middle section of the body of an insect, between the head and the abdomen, bearing the legs and wings.
〘虫〙 (昆虫の)胸部
ORIGIN
late Middle English: via Latin from Greek thōrax.