mediastinum (redirected from mediastinum testis)

me·di·as·ti·num  (md--stnm)

n. pl. me·di·as·ti·na (-n)

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

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[New Latin mediastnum, from neuter of Medieval Latin mediastnus, medial, from Latin, inferior servant, drudge (anatomical sense probably influenced by Latin intestnum, intestine), from medius, middle; see medhyo- in Indo-European roots.]

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medi·as·tinal (-nl) adj.

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mediastinum [ˌmiːdɪəˈstaɪnəm]

n pl -na [-nə] Anatomy

1. (Life Sciences & Allied Applications / Anatomy) a membrane between two parts of an organ or cavity such as the pleural tissue between the two lungs

2. (Life Sciences & Allied Applications / Anatomy) the part of the thoracic cavity that lies between the lungs, containing the heart, trachea, etc.

[from medical Latin, neuter of Medieval Latin mediastīnus median, from Latin: low grade of servant, from medius mean]

mediastinal  adj

Thesaurus

Noun

1.

mediastinum - the part of the thoracic cavity between the lungs that contains the heart and aorta and esophagus and trachea and thymus bodily cavity, cavum, cavity - (anatomy) a natural hollow or sinus within the body chest cavity, thoracic cavity - the cavity in the vertebrate body enclosed by the ribs between the diaphragm and the neck and containing the lungs and heart