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The part of the trunk between the neck and the abdomen,
containing that part of the body cavity the walls of which are
supported by the dorsal vertebrae, the ribs, and the sternum, and which
the heart and lungs are situated; the chest. |
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The middle region of the body of an insect, or that region
which bears the legs and wings. It is composed of three united somites,
each of which is composed of several distinct parts. See Illust. in
Appendix. and Illust. of Coleoptera. |
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The second, or middle, region of the body of a crustacean,
arachnid, or other articulate animal. In the case of decapod Crustacea,
some writers include under the term thorax only the three segments
bearing the maxillipeds; others include also the five segments bearing
the legs. See Illust. in Appendix. |
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A breastplate, cuirass, or corselet; especially, the
breastplate worn by the ancient Greeks. |
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