mediastinum
[ mee-dee-a-stahy-nuhm ]
/ ˌmi di æˈstaɪ nəm /
noun, plural me·di·as·ti·na [mee-dee-a-stahy-nuh]. /ˌmi di æˈstaɪ nə/. Anatomy.
a median septum or partition between two parts of an organ, or paired cavities of the body.
the partition separating the right and left thoracic cavities, formed of the two inner pleural walls, and, in humans, comprising all the viscera of the thorax except the lungs.
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Origin of mediastinum
1535–45; <New Latin; compare mediastīnus of middle class, apparently identical with Latin mediast(r)īnus a low-ranking slave, perhaps derivative of mediusmid1, though sense and formation unclear
OTHER WORDS FROM mediastinum
me·di·as·ti·nal, adjectiveWords nearby mediastinum
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for mediastinum
The subcutaneous tissue, pericardium, mediastinum, and mesenterium contained considerable amounts of fat.
Plague|Thomas Wright JacksonThis is a point of great practical importance in determining the extension of inflammation into the mediastinum.
It has been known to descend along the planes of connective tissue into the mediastinum or into the lungs.
British Dictionary definitions for mediastinum
mediastinum
/ (ˌmiːdɪəˈstaɪnəm) /
noun plural -na (-nə) anatomy
a membrane between two parts of an organ or cavity such as the pleural tissue between the two lungs
the part of the thoracic cavity that lies between the lungs, containing the heart, trachea, etc
Derived forms of mediastinum
mediastinal, adjectiveWord Origin for mediastinum
C16: from medical Latin, neuter of Medieval Latin mediastīnus median, from Latin: low grade of servant, from medius mean
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Medical definitions for mediastinum
mediastinum
[ mē′dē-ə-stī′nəm ]
n. pl. me•di•as•ti•na (-nə)
A septum between two parts of an organ or a cavity.
The region in mammals between the pleural sacs, containing the heart and all of the thoracic viscera except the lungs.interpleural space mediastinal space
Other words from mediastinum
me′di•as•ti′nal (-nəl) adj.me′di•as•ti′nal•ly adv.The American Heritage® Stedman's Medical Dictionary
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