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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «A»:

  1. AVN AVN
    AVN: Avascular necrosis....
  2. Avulse Avulse
    Avulse: To separate or tear away a body part, as from an accident or surgery. While playing football, he avulsed a spinous process....
  3. Avulsion Avulsion
    Avulsion: Tearing away. A nerve can be avulsed by an injury, as can part of a bone. ...
  4. Avuncular Avuncular
    Avuncular: 1. Literally, relating to an uncle. 2. Figuratively, suggestive of an uncle, as in geniality. 3 In medical genetics, pertaining to an aunt or uncle. An avuncular relationship is the genetic relationship between aunts and uncles and their nieces and nephews. From the Latin avunculus, mea...
  5. Axelrod Axelrod
    Axelrod: See: Axelrod, Julius...
  6. Axelrod, Julius Axelrod, Julius
    Axelrod, Julius: (1912- ) American pharmacologist and neuroscientist who shared the 1970 Nobel Prize in Physiology or Medicine for his discovery of the actions of neurotransmitters in regulating the metabolism of the nervous system. Julius ("Julie") Axelrod was born on the Lower East Side of Manhat...
  7. Axial tomography, computerized Axial tomography, computerized
    Axial tomography, computerized: Pictures of structures within the body created by a computer that takes the data from multiple X-ray images and turns them in pictures. The CAT (computerized axial tomography) scan can reveal some soft-tissue and other structures that cannot be seen in conventional X...
  8. Axilla Axilla
    Axilla: The cavity beneath the junction of the arm and the body, better known as the armpit. The word "axilla" was borrowed directly from the Latin. To the Romans, as to us, the axilla was just the armpit....
  9. Axillary Axillary
    Axillary: Pertaining to the cavity beneath the junction of the arm and the body, better known as the armpit. The word "axilla" was borrowed directly from the Latin. To the Romans, as to us, the axilla was just the armpit....
  10. Axillary dissection Axillary dissection
    Axillary dissection: Surgery in which the axilla (the armpit) is opened -- to "dissect" means to "cut apart" -- in order to identify, examine, and sometimes remove structures such as lymph nodes or other tissue for diagnosis or treatment....
  11. Axillary hyperhidrosis Axillary hyperhidrosis
    Axillary hyperhidrosis: Excessive sweating from the armpits. Excessive underarm perspiration tends to start in late adolescence....
  12. Axis Axis
    Take the Quiz: Chronic Fatigue Syndrome Understand the Causes of Fatigue Slideshow Good, Bad Exercises for Low Back Pain Slideshow ...
  13. Axon Axon
    Axon: A long fiber of a nerve cell (a neuron) that acts somewhat like a fiber-optic cable carrying outgoing (efferent) messages. The neuron sends electrical impulses from its cell body through the axon to target cells. Each nerve cell has one axon. An axon can be over 20 cm (a foot) in length, whic...
  14. Ayurveda Ayurveda
    Ayurveda: India's traditional, natural system of medicine that has been practiced for more than 5,000 years. Ayurveda provides an integrated approach to preventing and treating illness through lifestyle interventions and natural therapies. Ayurvedic theory states that all disease begins with an...
  15. Azoospermia Azoospermia
    Azoospermia: No sperm at all. The ejaculate is completely devoid of sperm. By contrast, in oligospermia (literally, few sperm) there are some sperm, but fewer than normal....