"thoraxes" in the noun sense
1. thorax
the middle region of the body of an arthropod between the head and the abdomen
2. thorax, chest, pectus
the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates
3. thorax
part of an insect's body that bears the wings and legs
Source: WordNet® (An amazing lexical database of English)
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