thorax

play
noun tho·rax \ˈthȯr-ˌaks\

Definition of thorax

plural

thoraxes

or

thoraces

play \ˈthȯr-ə-ˌsēz\
  1. 1 :  the part of the mammalian body between the neck and the abdomen; also :  its cavity in which the heart and lungs lie

  2. 2 :  the middle of the three chief divisions of the body of an insect; also :  the corresponding part of a crustacean or an arachnid

Origin and Etymology of thorax

Middle English, from Latin thorac-, thorax breastplate, thorax, from Greek thōrak-, thōrax


First Known Use: 15th century


THORAX Defined for English Language Learners

thorax

play
noun tho·rax \ˈthȯr-ˌaks\

Definition of thorax for English Language Learners

  • : the part of an animal's body between the neck and the waist

  • : the middle section of an insect's body


THORAX Defined for Kids

thorax

play
noun tho·rax \ˈthȯr-ˌaks\

Definition of thorax for Students

plural

thoraxes

or

thoraces

\ˈthȯr-ə-ˌsēz\
  1. 1 :  the part of the body of a mammal that lies between the neck and the abdomen and contains the heart and lungs

  2. 2 :  the middle of the three main divisions of the body of an insect


Medical Dictionary

thorax

play
noun tho·rax \ˈthō(ə)r-ˌaks, ˈthȯ(ə)r-\

Medical Definition of thorax

plural

thoraxes

or

thoraces

\ˈthōr-ə-ˌsēz, ˈthȯr-\play
  1. 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. 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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