from The American HeritageĀ® Dictionary of the English Language, 4th Edition

  • n. A plural of medium. See Usage Note at medium.
  • n. Linguistics See medial.
  • n. The middle, often muscular layer of the wall of a blood vessel.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The middle layer of the wall of a blood vessel or lymph vessel which is composed of connective and muscular tissue.
  • n. A voiced stop consonant.
  • n. Plural form of medium.
  • n. Means and institutions for publishing and broadcasting information.
  • n. The journalists and other professionals who comprise the mass communication industry.

from the GNU version of the Collaborative International Dictionary of English

  • n. The latinic plural form of medium, sometimes used as a singular noun with the same meaning as medium.
  • n. The public institutions that report the news, such as newspapers, magazines, radio, and television, collectively; the news media.

from The Century Dictionary and Cyclopedia

  • n. In anatomy, the middle tunic of an artery or a lymphatic vessel. Leidy, Anat. (1889).
  • n. Plural of medium.


Late Latin, from Latin, feminine of Latin medius, middle; see medium.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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