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
Other Words from mediastinum
mediastinal
\
ˌmē-dē-ə-ˈstī-nᵊl
\
adjective
\
adjective
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Cite this Entry
“Mediastinum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mediastinum. Accessed 8 Aug. 2022.
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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
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Time Traveler for mediastinum
The first known use of mediastinum was in the 15th century
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