mediastinum definition - Dictionary

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mediastinum

me·di·as·ti·num [ mdee ə stnəm ] (plural me·di·as·ti·na [ mdee ə stnə ])

noun

Definition:

region in chest: in mammals, the region of the chest between the lungs that contains the heart, trachea, and other organs

[15th century. < medieval Latin, form of mediastinus "medial" < Latin, "common servant" < medius "middle"]

me·di·as·ti·nal adjective

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