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me·di·as·ti·num | \ ˌmē-dē-ə-ˈstī-nəm 
\
\ plural mediastina\ ˌmē-dē-ə-ˈstī-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
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Other Words from mediastinum
mediastinal \ ˌmē-dē-ə-ˈstī-nᵊl \ adjective
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More Definitions for mediastinum
mediastinum
nounme·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
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The first known use of mediastinum was in the 15th century
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