mediastinum
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.
Origin of mediastinum
1Other words from mediastinum
- me·di·as·ti·nal, adjective
Words Nearby mediastinum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use mediastinum in a sentence
Several lymphatic glands in the anterior part of the mediastinum contained black fluid.
An Investigation into the Nature of Black Phthisis | Archibald MakellarI noted that there was free air and blood in the superior right mediastinum.
Warren Commission (6 of 26): Hearings Vol. VI (of 15) | The President's Commission on the Assassination of President KennedyThere was considerable hematoma in the right lateral portion of the neck and the right superior mediastinum, as I noted.
Warren Commission (6 of 26): Hearings Vol. VI (of 15) | The President's Commission on the Assassination of President KennedyNext, the diaphragm and all parts of the right mediastinum was examined but no injury was found.
Warren Commission (6 of 26): Hearings Vol. VI (of 15) | The President's Commission on the Assassination of President KennedyThis is a point of great practical importance in determining the extension of inflammation into the mediastinum.
British Dictionary definitions for mediastinum
/ (ˌmiːdɪəˈstaɪnəm) /
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
Origin of mediastinum
1Derived forms of mediastinum
- mediastinal, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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