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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «F»:

  1. First do no harm First do no harm
    First do no harm: Slogan used in medicine often in the Latin wording "primum non nocere," a fundamental medical precept of Hippocrates (ca. 460-ca. 377 B.C)....
  2. First stage of labor First stage of labor
    First stage of labor: The part of labor when the cervix dilates fully (to 10 centimeters). The first stage of labor is also called the stage of dilatation....
  3. FISH FISH
    FISH: Abbreviation for fluorescence in situ hybridization, a molecular technique used in chromosome studies. FISH employs fluorescent (fluorescein tags) that glow under ultraviolet light to detect the hybridization (the combination) of molecular probes with specific chromosomes and specific chromo...
  4. Fish bowl granuloma Fish bowl granuloma
    Fish bowl granuloma: Localized nodular skin inflammation (small reddish raised areas of skin) caused by a bacterium called mycobacterium marinum. Fish bowl granuloma is typically acquired by occupational or recreational exposure to salt or fresh water, often resulting from minor trauma during carin...
  5. Fish oil, omega-3 Fish oil, omega-3
    Fish oil, omega-3: A class of fatty acids found in fish oils, especially from salmon and other cold-water fish, that acts to lower the levels of cholesterol and LDL (low-density lipoproteins) in the blood. (LDL cholesterol is the "bad" cholesterol.) Omega-3 fish oil is therefore thought to be a neut...
  6. Fish-odor syndrome Fish-odor syndrome
    Fish-odor syndrome: An inborn error of metabolism associated with an offensive body odor, the smell of rotting fish, due to the excessive excretion of trimethylaminuria (TMA) in urine, sweat, and breath. Persons with TMA may experience tachycardia (fast heart rate) and severe hypertension (high bloo...
  7. Fisher's exact test Fisher's exact test
    Fisher's exact test: A statistical test of independence much used in medical research. It tests the independence of rows and columns in a 2 X 2 contingency table (with 2 horizontal rows crossing 2 vertical columns creating 4 places for data) based on the exact sampling distribution of the observed f...
  8. Fissure Fissure
    Fissure: A cleft or groove. A fissure can be normal or abnormal. A fissure in the cerebral cortex is a normal feature. It is a deep fold that involves the entire thickness of the brain wall. A fissure in the anus is distinctly abnormal. It is a painful crack in the edge of the anus and is very pai...
  9. Fissure, palpebral Fissure, palpebral
    Fissure, palpebral: The opening for the eye between the eyelids. ...
  10. Fistula Fistula
    Fistula: An abnormal passageway in the body. The fistula may go from the body surface into a blindpouch or into an internal organ or go between two internal organs. For a common example, an anal fistula has an opening in the skin near the anus that leads into a blind pouch or may connect through ...
  11. Fistula, anal Fistula, anal
    Fistula, anal: See: Anal fistula....
  12. Fistulize Fistulize
    Fistulize: To form or make a fistula, an abnormal passageway. As, for example, fistulizing Crohn's disease....
  13. Five-day fever Five-day fever
    Five-day fever: Also called trench fever, this is a disease borne by body lice that was first recognized in the trenches of World War I, when it is estimated to have affected more than a million people in Russia and on the fronts in Europe. Trench fever was again a major problem in the milita...
  14. Five-lipoxygenase activating protein Five-lipoxygenase activating protein
    Five-lipoxygenase activating protein: See: FLAP....
  15. Fixation, external Fixation, external
    Fixation, external: A procedure that stabilizes and joins the ends of fractured (broken) bones by a splint or cast. External fixation is as opposed to internal fixation in which the ends of the fractured bone are joined by mechanical devices such as metal plates, pins, rods, wires or screws....