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Drugs and diseases reference index

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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «D»:

  1. DVT (deep vein thrombosis) DVT (deep vein thrombosis)
    DVT (deep vein thrombosis): Blood clotting in the veins of the inner thigh or leg. In air travel, DVT is the "economy-class syndrome." Even in young, health travelers the long stretches immobilized in cramped seats in cabins with very low humidity set the stage for the formation of a t...
  2. Dwarf Dwarf
    Dwarf: Someone with dwarfism, which is now more correctly called short stature. People with dwarfism (short stature) also consider themselves little people, as in the Little People of America....
  3. Dwarfism Dwarfism
    Dwarfism: Abnormally short stature. Some forms are hereditary. The Little People of America (LPA) define dwarfism as an adult height of 148 cm (4 feet 10 inches) or less. Also known as nanism. Dwarfism is now more correctly called short stature. See also specific types, such as Achondroplasia, Hypo...
  4. Dwarfism, achondroplastic Dwarfism, achondroplastic
    Dwarfism, achondroplastic: A genetic disorder of bone growth, achondroplasia is the most common cause of short stature with disproportionately short limbs -- dwarfism with short arms and legs. There is a typically large head with prominence of the forehead (frontal bossing), underdevelopment (hypopl...
  5. Dwarfism, pituitary Dwarfism, pituitary
    Dwarfism, pituitary: Dwarfism caused by a lack of growth hormone, usually due to malfunction of the pituitary gland. Children with growth hormone deficiency may grow normally for the first two to three years of life but they then fall behind their peers in height. They are normally proportioned. Thi...
  6. Dwarfism, thanatophoric Dwarfism, thanatophoric
    Dwarfism, thanatophoric: A form of short-limbed (micromelic) dwarfism that usually causes death within the first few hours after birth. Thanatophoric dysplasia is due to a lethal mutation (change) in the same gene that produces achondroplasia, a familiar and far more common form of short-limbed dwar...
  7. Dx Dx
    Dx: Abbreviation standing for diagnosis, the determination of the nature of a disease. Dx may alternatively be written DX or dx. See also Diff dx....
  8. DXA DXA
    DXA: Dual X-ray absorptometry. A technique for scanning bone and measuring bone mineral density (BMD). A DXA scanner is a large machine that produces 2 X-ray beams, each with different energy levels. One beam is high energy while the other is low energy. The amount of x-rays that pass through the bo...
  9. DXA bone scan DXA bone scan
    DXA bone scan: See: DXA....
  10. DXM DXM
    DXM: Dextromethorphan, a cough suppressant, sometimes misused as a recreational drug....
  11. Dyad Dyad
    Dyad: The word "dyad" comes from the Greek "dyas" meaning the number two. In psychology, a dyad refers to a pair of persons in an interactional situation. For example, a patient and therapist, a woman and her husband, a girl and her stepfather, etc. In chemistry, a dyad is a bivalent element. And i...
  12. Dynacin Dynacin
    Dynacin: Brand name for minocycline....
  13. Dynein Dynein
    Dynein: A family of microtubule motor proteins that derive energy from ATP (adenosine triphosphatase) activity. The dyneins also form arms on the outer tubules of cilia and flagella. The dynein motor, a cellular complex believed to be composed of 12 distinct protein parts, performs fundamental tr...
  14. DYS DYS
    DYS: Symbol for familial dysautonomia. See: Familial dysautonomia. ...
  15. Dysarthria Dysarthria
    Dysarthria: Speech that is characteristically slurred, slow, and difficult to produce (difficult to understand). The person with dysarthria may also have problems controlling the pitch, loudness, rhythm, and voice qualities of their speech. Dysarthria is a disorder caused by paralysis, weakness,...