Drugs Information Online
Drugs and diseases reference index

Drugs and diseases reference index
Search
EN

Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «C»:

  1. Chromosome, X Chromosome, X
    Chromosome, X: The sex chromosome found twice in normal females and once, along with a Y chromosome, in normal males. The complete chromosome complement consisting of 46 chromosomes including the two sex chromosomes is conventionally written as 46,XX for females and 46,XY for males. The X chro...
  2. Chromosome, Y Chromosome, Y
    Chromosome, Y: See: Y chromosome...
  3. Chromosomes Chromosomes
    Chromosomes: The microscopically visible carriers of the genetic material. They are composed of deoxyribonucleic acid (DNA) and proteins and, under a microscope, look like little rods. Humans normally have 46 chromosomes -- 44 autosomes (nonsex chromosomes) plus XX sex chromosomes in the case of th...
  4. Chromosomes in multiple miscarriages Chromosomes in multiple miscarriages
    Chromosomes in multiple miscarriages: Couples who have had more than one miscarriage (spontaneous abortion) have about a 5% chance that one member of the couple is carrying a chromosome translocation responsible for the miscarriages....
  5. Chronic Chronic
    Chronic: This important term in medicine comes from the Greek chronos, time and means lasting a long time. A chronic condition is one lasting 3 months or more, by the definition of the U.S. National Center for Health Statistics. In ancient Greece, the "father of medicine" Hippocrates dist...
  6. Chronic arthritis, systemic-onset juvenile Chronic arthritis, systemic-onset juvenile
    Chronic arthritis, systemic-onset juvenile: See: Arthritis, systemic-onset juvenile rheumatoid....
  7. Chronic bacterial prostatitis Chronic bacterial prostatitis
    Chronic bacterial prostatitis: Longstanding bacterial infection of the prostate gland superimposed on a defect in the prostate. (The prostate is a small organ below the bladder which surrounds the urethra, the tube that carries urine down from the bladder.) The symptoms can include low back pai...
  8. Chronic bronchitis Chronic bronchitis
    Chronic bronchitis: Defined clinically as a daily cough with production of sputum for 3 months, two years in a row. In chronic bronchitis, there is inflammation and swelling of the lining of the airways that lead to narrowing and obstruction of the airways. The inflammation stimulates production of...
  9. Chronic daily headache Chronic daily headache
    Chronic daily headache: See: Headache, chronic daily....
  10. Chronic disease Chronic disease
    Chronic disease: A disease that persists for a long time. A chronic disease is one lasting 3 months or more, by the definition of the U.S. National Center for Health Statistics. Chronic diseases generally cannot be prevented by vaccines or cured by medication, nor do they just disappear. Eighty-eigh...
  11. Chronic fatigue syndrome Chronic fatigue syndrome
    Chronic fatigue syndrome: A debilitating and complex disorder characterized by profound fatigue of six months or longer duration that is not improved by bed rest and that may be worsened by physical or mental activity. Persons with chronic fatigue syndrome (CFS) most often function at a substantiall...
  12. Chronic granulocytic leukemia Chronic granulocytic leukemia
    Chronic granulocytic leukemia: See: Chronic myelogenous leukemia....
  13. Chronic illness Chronic illness
    Chronic illness: An illness that persists for a long period of time. The term "chronic" comes from the Greek chronos, time and means lasting a long time. A chronic illness is one lasting 3 months or more, by the definition of the U.S. National Center for Health Statistics. In ancient Greece, the "f...
  14. Chronic insomnia Chronic insomnia
    Chronic insomnia: See Insomnia, chronic....
  15. Chronic kidney failure Chronic kidney failure
    Chronic kidney failure: See: Chronic renal failure....