thorax

The thorax is defined as the part of the body between the head and the abdomen.

(noun)

An example of the thorax is where the lungs are located under the ribcage.

See thorax in Webster's New World College Dictionary

in tetrapods, including humans,
1. the part of the body cavity from the neck or head to the abdomen, containing the heart, lungs, etc.; chest: in mammals, the diaphragm separates it from the abdomen
2. the area of the trunk covering this part
in arthropods, the body segment between the head and abdomen to which the legs are attached

Origin: ME < L < Gr thōrax, chest, breastplate

See thorax in American Heritage Dictionary 4

noun pl. tho·rax·es or tho·ra·ces (thôrˈə-sēzˌ, thōrˈ-)

The part of the human body between the neck and the diaphragm, partially encased by the ribs and containing the heart and lungs; the chest.
A part in other vertebrates that corresponds to the human thorax.
The second or middle region of the body of an arthropod, between the head and the abdomen, in insects bearing the true legs and wings.

Origin:

Origin: Middle English

Origin: , from Latin thōrāx, breastplate, chest

Origin: , from Greek

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