First Known Use: 15th century
Dictionary
thorax
noun tho·rax \ˈthȯr-ˌaks\
: the part of an animal's body between the neck and the waist
: the middle section of an insect's body
plural tho·rax·es or tho·ra·ces \ˈthȯr-ə-ˌsēz\
Full Definition of THORAX
1
: the part of the mammalian body between the neck and the abdomen; also : its cavity in which the heart and lungs lie
2
: the middle of the three chief divisions of the body of an insect; also : the corresponding part of a crustacean or an arachnid
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Origin of THORAX
Middle English, from Latin thorac-, thorax breastplate, thorax, from Greek thōrak-, thōrax
Other Anatomy Terms
THORACES Defined for Kids
thorax
noun tho·rax \ˈthȯr-ˌaks\
plural tho·rax·es or tho·ra·ces \ˈthȯr-ə-ˌsēz\
Definition of THORAX for Kids
1
: the part of the body of a mammal that lies between the neck and the abdomen and contains the heart and lungs
2
: the middle of the three main divisions of the body of an insect
Medical Dictionary
thorax
noun tho·rax \ˈthō(ə)r-ˌaks, ˈthȯ(ə)r-\
plural tho·rax·es or tho·ra·ces \ˈthōr-ə-ˌsēz, ˈthȯr-\
Medical Definition of THORAX
1
: the part of the mammalian body that is situated between the neck and the abdomen and supported by the ribs, costal cartilages, and sternum; also : thoracic cavity
2
: the middle of the three chief divisions of the body of an insect; also : the corresponding part of a crustacean or an arachnid
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