/ ˈθɔːræks; NAmE / noun ( pl. thor·axes or thor·aces / ˈθɔːrəsiːz; NAmE /)
1.
( anatomy ) the part of the body that is surrounded by the ribs , between the neck and the waist
2.
the middle section of an insect's body, to which the legs and wings are attached
—picture at ant
► thor·acic / θɔːˈræsɪk; NAmE / adjective [ only before noun ]
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WORD ORIGIN
late Middle English : via Latin from Greek thōrax .