MEDIASTINUM

mediastinum

(noun) the part of the thoracic cavity between the lungs that contains the heart and aorta and esophagus and trachea and thymus

Source: WordNet® 3.1


Etymology

Noun

mediastinum (plural mediastina)

(anatomy) The region in mammals between the pleural sacs, containing the heart and all of the thoracic viscera except the lungs.

Source: Wiktionary


Me`di*as"tine, Me`di*as*ti"num, n. Etym: [NL. mediastinum, fr. L. medius middle; cf. mediastinus helper, a menial servant, LL. mediastinus equiv. to medius: cf F. médiastin.] (Anat.)

Definition: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition



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23 December 2024

QUANDONG

(noun) Australian tree having hard white timber and glossy green leaves with white flowers followed by one-seeded glossy blue fruit


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Coffee Trivia

There are more than 50 countries that export coffee. They are near the equator, where the climate is conducive to producing coffee beans.

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