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TAKE THE QUIZthoracic cavity
noun
plural thoracic cavities
: the cavity of the thorax (see thorax sense 1) that is bounded below by the diaphragm, is enclosed by the sternum, ribs, and thoracic vertebrae, and that contains the heart and lungs
… an inflammation of the thoracic cavity which feels like a burning stiffness of the muscles …—
Harold Brodky
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Merriam-Webster unabridged
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- Before we went to her house, Hannah told us her aunt was a flibbertigibbet.


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