mediastinum

noun
me·di·as·ti·num | \ ˌmē-dē-ə-ˈstī-nəm \
plural mediastina\-nə \

Definition of mediastinum 

: the space in the chest between the pleural sacs of the lungs that contains all the tissues and organs of the chest except the lungs and pleurae also : this space with its contents

Other words from mediastinum

mediastinal \-ˈstī-nᵊl \ adjective

First Known Use of mediastinum

15th century, in the meaning defined above

History and Etymology for mediastinum

New Latin, from Medieval Latin, neuter of mediastinus medial, from Latin medius

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The first known use of mediastinum was in the 15th century

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More Definitions for mediastinum

mediastinum

noun
me·di·as·ti·num | \ ˌmēd-ē-ə-ˈstī-nəm \
plural mediastina\-nə \

Medical Definition of mediastinum 

1 : the space in the chest between the pleural sacs of the lungs that contains all the viscera of the chest except the lungs and pleurae also : this space with its contents

More from Merriam-Webster on mediastinum

Britannica.com: Encyclopedia article about mediastinum

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