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Drugs and diseases reference index
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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «X»:

  1. Xeroradiograph Xeroradiograph
    Xeroradiograph: A picture of the body recorded on paper rather than on film. Also called a xerogram. From the Greek "xeros" meaning "dry."...
  2. Xeroradiography Xeroradiography
    Xeroradiography: The process of making a type of dry x-ray in which a picture of the body is recorded on paper rather than on film....
  3. Xerosis Xerosis
    Xerosis: Abnormal dryness of the skin (xeroderma), of the conjunctiva of the eye (xerophthalmia), or of the mucous membranes such as dry mouth (xerostomia). The word "xerosis" literally means "dry condition." It was compounded from the Greek roots "xero-" (dry) and "-osis" (condition)....
  4. Xerostomia Xerostomia
    Xerostomia: Dry mouth. The condition of not having enough saliva to keep the mouth wet due to inadequate function of the salivary glands. Everyone has a dry mouth once in a while when they are nervous, upset or under stress. But if someone has a dry mouth all or most of the time, it can be uncomfort...
  5. Xiphoid process Xiphoid process
    Xiphoid process: A pointed cartilage attached to the lower end of the breastbone or sternum, the smallest and lowest division of the sternum. Cartilaginous early in life, it may become ossified (bony) in adults. It is sometimes simply called the xiphoid. Also known as the ensiform cartilage or proc...
  6. XP XP
    XP: Xeroderma pigmentosum....
  7. XRT XRT
    XRT: Medical abbreviation for radiotherapy....
  8. XTC XTC
    XTC: A street name for 3-4 methylenedioxymethamphetamine. See: Ecstasy....
  9. Xuezhikang Xuezhikang
    Xuezhikang: One of the three major preparations of red yeast rice, a tradition Chinese medicine now used to lower cholesterol....
  10. XX XX
    XX: The sex chromosome complement of a normal human female. See also X chromosome....
  11. XX gonadal dysgenesis with sensorineural deafness XX gonadal dysgenesis with sensorineural deafness
    XX gonadal dysgenesis with sensorineural deafness: See Perrault syndrome....
  12. XX male syndrome XX male syndrome
    XX male syndrome: A syndrome characterized by the presence of an XX sex chromosome complement in an individual with male genitalia including both testes but no sperm production (azoospermia). Babies with the XX male syndrome may come to medical attention at birth because of hypospadias (urethral ope...
  13. XXX syndrome XXX syndrome
    XXX syndrome: A chromosome condition present in 1 in 1000 females, due to the presence of three X chromosomes rather than the usual two. The condition is associated with increased height but no malformations. Intelligence ranges from above normal to mild retardation. The average IQ is 85 to 90. Lea...
  14. XXXX syndrome XXXX syndrome
    XXXX syndrome: A chromosome disorder in females caused by the presence of four X chromosomes rather than the usual two. The disorder is characterized by decreased intelligence (IQ 30 to 80; average 55), speech and behavioral problems, tall stature and reduced fertility. Also known as tetra-X syndr...
  15. XXXXX syndrome XXXXX syndrome
    XXXXX syndrome: A chromosome disorder in females, caused by the presence of five X chromosomes rather than the usual two. It is characterized by decreased intelligence (IQ 20 to 75) and multiple malformations including upward-slanting palpebral fissures (eyeslits), heart defect, and small hands wi...