noun
1.
2.An intermediate layer in the wall of a blood vessel or lymphatic vessel.
‘Some veins do not possess smooth muscle fibers and, as a result, do not have a tunica media.’
‘Alternatively, thickness of the carotid intima and media may be measured by using ultrasound.’
3.The main means of mass communication (broadcasting, publishing, and the Internet) regarded collectively.
‘their demands were publicized by the media’
‘The role of medical journals and the media should not be ignored in that debate.’
proper noun
1.An ancient region of Asia to the south-west of the Caspian Sea, corresponding approximately to present-day Azerbaijan, north-western Iran, and north-eastern Iraq. Originally inhabited by the Medes, the region was conquered in 550 BC by Cyrus the Great of Persia.
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