from The Century Dictionary.

  • noun Same as mediastinum.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) A partition; a septum; specifically, the folds of the pleura (and the space included between them) which divide the thorax into a right and left cavity. The space included between these folds of the pleura, called the mediastinal space, contains the heart and gives passage to the esophagus and great blood vessels.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun anatomy mediastinum


Sorry, no etymologies found.


Help support Wordnik (and make this page ad-free) by adopting the word mediastine.



Log in or sign up to get involved in the conversation. It's quick and easy.