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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «Y»:

  1. YAMA YAMA
    YAMA: See: Caspase 3....
  2. Yard Yard
    Yard: In length, 3 feet or 36 inches or, metrically, 91.44 centimeters. The yard, along with the foot and inch, are English creations to which the USA has stubbornly clung. The yard was originally a unit of measurement of land and was about 5 meters (now termed a rod). In the 14th century, the yard...
  3. Yawn Yawn
    Yawn: Involuntary opening of the mouth, often caused by suggestion. Yawning is characterized by breathing first inward, then outward. Repeated yawning is often a sign of drowsiness. It may also sometimes be a sign of depression....
  4. Yawning Yawning
    Yawning: Involuntary opening of the mouth with respiration, breathing first inward, then outward. Yawning is often caused by the power of suggestion. Repeated yawning may be a sign of drowsiness. It can also sometimes be a sign of depression....
  5. Yaws Yaws
    Yaws: A common chronic infectious disease that occurs mainly in the warm humid regions of the tropics with characteristic bumps on the skin of the face, hands, feet and genital area. Almost all cases of yaws are in children under 15 years of age. The organism that causes yaws is a spirochete. ...
  6. yd. yd.
    yd.: Abbreviation for a yard as a measure of length. A yard equals 3 feet or 36 inches. The metric equivalents for these measures of length are: A yard = 0.9144 meter. A foot = 30.48 centimeters. An inch = 2.54 centimeters....
  7. Yeast Yeast
    Yeast: A group of single-celled fungi that reproduce by budding. Most yeast are harmless (some are used in baking and brewing). Yeast is commonly present on normal human skin and in areas of moisture, such as the mouth and vagina, usually without causing any problems. However, yeast can produce...
  8. Yeast artificial chromosome (YAC) Yeast artificial chromosome (YAC)
    Yeast artificial chromosome (YAC): A vector (carrier) created and used in the laboratory to clone pieces of DNA. A YAC is constructed from the telomeric, centromeric, and replication origin sequences needed for replication in yeast cells. (The telomere is the end of the chromosome; the centro...
  9. Yeast diaper rash Yeast diaper rash
    Yeast diaper rash: Infection in the diaper area caused by a yeast formerly called Monilia and now called Candida. These organisms are part of the germs normally found in various parts of the body and ordinarily do not cause any symptoms. Certain conditions, such as antibiotic use or excessive moistu...
  10. Yeast genome Yeast genome
    Yeast genome: All of the genetic information contained in yeast (Saccharomyces cerevisiae). The genomes of particular nonhuman organisms such as yeast have been studied for a number of reasons including the need to improve sequencing and analysis techniques. These nonhuman genomes also provide pow...
  11. Yeast infection Yeast infection
    Yeast infection: Overgrowth of yeast can affect the skin (yeast rash), mouth (thrush), digestive tract, esophagus, vagina (vaginitis), and other parts of the body. Yeast infections occur most frequently in moist areas of the body. Although Candida albicans and other Candida yeasts are the most ...
  12. Yeast rash Yeast rash
    Yeast rash: A slightly raised pink-to-red rash caused by proliferation of yeast, usually in a moist area such as the groin. It is most common in infants, but can also occur on the skin of older children and adults. Treatment is by keeping the affected area clean and dry, and applying topical an...
  13. Yeast syndrome Yeast syndrome
    Yeast syndrome: The yeast Candida has been thought to cause a syndrome with a number of nonspecific problems including fatigue, loss of appetite, headache, short-attention span, depression and all manner of intestinal irregularities. There is no scientific evidence to support the existence of the ye...
  14. Yeast vaginitis Yeast vaginitis
    Yeast vaginitis: Infection of the vagina by a fungus known as Candida, characteristically causing itching, burning, soreness, pain during intercourse and urination, and vaginal discharge. Yeast vaginitis occurs when new yeast are introduced into the vagina or there is an increase in the quantity of ...
  15. Yeast vulvitis Yeast vulvitis
    Yeast vulvitis: A yeast infection of the external genital organs of the female (the vulva). The vulva includes the labia, clitoris, and the entrance (the "vestibule") to the vagina. Yeast vulvitis commonly goes together with yeast vaginitis, infection of the vagina by the fungus known as Candida. Th...