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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «M»:

  1. Migraine, ophthalmic Migraine, ophthalmic
    Migraine, ophthalmic: Migraine involving the eyes but without headache. Migraine, due to a spasm of blood vessels in the brain, usually causes a headache. Flashes of light may appear as jagged lines or "heat waves" in one or both eyes and often last 10-20 minutes, sometimes without a headache. ...
  2. Migraineur Migraineur
    Migraineur: A person who has migraine headache. Borrowed from the French....
  3. Migrainous neuralgia Migrainous neuralgia
    Migrainous neuralgia: A distinctive syndrome of headaches, today better known as cluster headache. There are two main clinical patterns of cluster headache -- the episodic and the chronic: Episodic: This is the most common pattern of cluster headache. It is characterized by 1-3 short attacks of pa...
  4. Mild cognitive impairment Mild cognitive impairment
    Mild cognitive impairment: Abbreviated MCI. A brain disorder in which thinking abilities are mildly impaired. Individuals with mild cognitive impairment are able to function in everyday activities but have difficulty with memory -- trouble remembering the names of people they met recently, rememberi...
  5. Miliary aneurysm Miliary aneurysm
    Miliary aneurysm: An aneurysm that is tiny like a millet seed. Miliary aneurysms tend to affect minute arteries in the brain and, in the eye, in the retina. One of the botanical borrowings by medicine, "miliary" refers to the millet seed, millet being a small-grained rather inferior cereal gra...
  6. Miliary tuberculosis Miliary tuberculosis
    Miliary tuberculosis: See: Tuberculosis, miliary....
  7. Milk allergy, cow Milk allergy, cow
    Milk allergy, cow: Casein and whey are the two major proteins of human milk and most milk-based formulas. Some (less than 8% of) infants have a true allergy to the cow proteins that are in milk-based formulas. Infants with true cow milk allergy can develop abdominal pain, diarrhea, rectal bleedi...
  8. Milk, witch's Milk, witch's
    Milk, witch's: See Witch's milk....
  9. Miller's lung Miller's lung
    Miller's lung: A type of allergic inflammation of the lungs (hypersensitivity pneumonitis) in people who are hypersensitive to the granary weevil (the wheat weevil or Sitophilus granarius). People who work with grains or flours contaminated with this weevil are at especially high risk for this disea...
  10. Miller-Dieker syndrome Miller-Dieker syndrome
    Miller-Dieker syndrome: A congenital malformation syndrome characterized by lissencephaly ("smooth brain") and a characteristic facial appearance with a prominent forehead with bitemporal hollowing, short nose with upturned nares, thickened upper lip with a thin vermilion upper border, widely spaced...
  11. Milligram Milligram
    Milligram: A unit of measurement of mass in the metric system equal to a thousandth of a gram. A gram is equal to the mass of one milliliter, one thousandth of a liter, of water at 4 degrees C. The abbreviation for milligram is mg....
  12. Milligray Milligray
    Milligray: A unit of absorbed radiation equal to 0.001 gray. (A gray is the dose of one joule of energy absorbed per kilogram of matter, or 100 rad.) Because the gray is such a large unit, many radiation measurements are made in milligrays. In particular, exposures from by X-ray equipment are typica...
  13. Milwaukee brace Milwaukee brace
    Milwaukee brace: One of the two main types of braces used to treat the lateral curve of the spine in scoliosis. This brace can be worn to correct any curve in the spine. The brace can be custom made or can be made from a pre-fabricated mold. All braces must be selected for the specific curve problem...
  14. Milzbrand Milzbrand
    Milzbrand: Known also as anthrax, milzbrand is a serious bacterial infection. It is not primarily a human disease but rather an infection of animals. Cattle, sheep, horses, mules, and some wild animals are highly susceptible. Humans (and swine) are generally resistant to anthrax. Anthrax can take...
  15. Mimesis Mimesis
    Mimesis: Imitation or mimicry. Mimesis in medicine refers to the hysterical simulation of organic disease and to the imitation of one organic disease by another. Mimesis in aesthetic or artistic theory refers to the attempt to imitate or reproduce reality. The word "mimesis" comes from the Greek ...