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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «F»:

  1. Fixation, internal Fixation, internal
    Fixation, internal: A surgical procedure that stabilizes and joins the ends of fractured (broken) bones by mechanical devices such as metal plates, pins, rods, wires or screws. Internal fixation is as opposed to external fixation of a fracture by a splint or cast....
  2. Fixative Fixative
    Fixative: A medium such as a solution or spray that preserves specimens of tissues or cells. Most biopsies and specimens removed at surgery are fixed in a solution such as formalin (dilute formaldehyde) before further processing takes place. Other common ingredients used in fixatives are alcohol, me...
  3. Flail chest Flail chest
    Flail chest: When enough ribs are broken (usually from a crush injury) to compromise the rigidity of the chest wall. On inspiration, the chest wall moves inward instead of outward and the opposite on expiration....
  4. FLAP FLAP
    FLAP: A gene that helps make a leukotriene, a signal that activates the white blood cells involved in inflammation. FLAP stands for 5-lipoxygenase-activating protein. FLAP has been implicated in a number of inflammatory responses, including asthma, arthritis, psoriasis, heart attack and stroke. F...
  5. Flashing Flashing
    ("Flashing"): "Flashing," or exhibitionism is characterized by intense, sexually arousing fantasies, urges or behaviors involving exposure of the individual's genitals to an unsuspecting stranger. The individual with this problem, sometimes called a "flasher," feels a need to ...
  6. Flat affect Flat affect
    Flat affect: A severe reduction in emotional expressiveness. People with depression and schizophrenia often show flat affect. A person with schizophrenia may not show the signs of normal emotion, perhaps may speak in a monotonous voice, have diminished facial expressions, and appear extremely apathe...
  7. Flat condyloma Flat condyloma
    Flat condyloma: A manifestation of the secondary stage of syphilis that takes the form of broad flat wartlike growths in moist creased areas, as around the anus and external genitalia. Also called condyloma latum....
  8. Flat feet Flat feet
    Flat feet: A condition of the feet in which the arch of the instep is flattened and the entire sole touches the ground. All babies have flat feet because their arches are not yet built up (and their feet tend to be plump). This condition may persist into adulthood, or an arch may form as the child ...
  9. Flatfeet Flatfeet
    Flatfeet: A condition of the feet in which the arch of the instep is flattened and the entire sole touches the ground. All babies have flat feet because their arches are not yet built up (and their feet tend to be plump). This condition may persist into adulthood, or an arch may form as the child g...
  10. Flatfoot Flatfoot
    Flatfoot: 1. A foot in which the arch of the instep is flattened and the entire sole touches the ground. See: Flatfeet. 2. Slang in the past for a foot soldier or sailor, and today for a policeman or detective....
  11. Flatulence Flatulence
    Flatulence: Excess gas in the intestinal tract. But excess flatulence is difficult to define without a yardstick to measure the "normal" frequency of gas passages. Symptom-free individuals have recorded approximately 14 passages of gas per 24 hours. From the Latin flastus, meaning blowing,...
  12. Flatulent Flatulent
    Flatulent: Pertaining to flatulence, the generation of excess gas in the intestinal tract. From the Latin flastus, meaning blowing, as a breeze or snort....
  13. Flatus Flatus
    Flatus: Gas in the intestinal tract or passed through the anus. The intestinal gases are hydrogen, nitrogen, carbon dioxide, and methane, all of which are odorless. The unpleasant smell of flatus is the result of trace gases such as indole, skatole, and, most commonly, hydrogen sulfide....
  14. Flavin-containing monooxygenase-3 (FMO3) Flavin-containing monooxygenase-3 (FMO3)
    Flavin-containing monooxygenase-3 (FMO3): See Fish-odor syndrome....
  15. Flaviviridae Flaviviridae
    Flaviviridae: A family of viruses transmitted by mosquitos and ticks that cause some important diseases, including dengue, yellow fever, tick-borne encephalitis virus, and West Nile fever. The flaviviruses are positive-strand RNA viruses containing three structural proteins and a host-derived lipid ...