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Drugs and diseases reference index

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

Medical Dictionary Definitions A - Z - «S»:

  1. Sydenham, Thomas Sydenham, Thomas
    Sydenham, Thomas: (1624-1689) Great English physician who has been called the "English Hippocrates" and the "father of English medicine." Sydenham left Oxford to fight in the English Civil Wars during which he met Thomas Coxe, a physician serving in the army, who inspired him to enter medicine. At t...
  2. Sylvatic plague Sylvatic plague
    Sylvatic plague: Plague that is spread by ground squirrels and other wild rodents, for example, in the western portion of the United States. "Sylvatic" means pertaining to the woods (sylvan)....
  3. Sylvius, aqueduct of Sylvius, aqueduct of
    Sylvius, aqueduct of: A canal that communicates between the third and fourth ventricles in a system of four communicating cavities within the brain that are continuous with the central canal of the spinal cord. The four ventricles consist of the two lateral ventricles, the third ventricle and the fo...
  4. Symbol of medicine Symbol of medicine
    Symbol of medicine: A staff or a rod with a snake curled around it; the staff of Aesculapius, also called Asklepios, the ancient mythical god of medicine. For more information, see; Medical symbol....
  5. Symbol of pediatrics Symbol of pediatrics
    Symbol of pediatrics: See: Infant in swaddling,...
  6. Symmetric lipomatosis, multiple Symmetric lipomatosis, multiple
    Symmetric lipomatosis, multiple: A disorder characterized by painless symmetrical diffuse deposits of fat beneath the skin of the neck, upper trunk, arms and legs. The condition is thought to be genetic although its exact mode of inheritance is uncertain. It may be a mitochondrial DNA disease. It f...
  7. Sympathetic nervous system Sympathetic nervous system
    Sympathetic nervous system: A part of the nervous system that serves to accelerate the heart rate, constrict blood vessels, and raise blood pressure. The sympathetic nervous system and the parasympathetic nervous system constitute the autonomic nervous system, the branch of the nervous system t...
  8. Sympathetic ophthalmia Sympathetic ophthalmia
    Sympathetic ophthalmia: An autoimmune eye disease in which a penetrating injury to one eye produces inflammation in the uninjured eye. (The injured eye is termed the "exciting" eye while the uninjured one is the "sympathetic" eye.) The original eye injury always involves the uvea, specifically the c...
  9. Sympathicoblastoma Sympathicoblastoma
    Sympathicoblastoma: A childhood tumor, better known today as neuroblastoma, that arises in the adrenal gland or in tissue in the nervous system that is related to the adrenal gland. Neuroblastoma affects newborn babies and children up through the age of 10. In the adrenal it develops in the medull...
  10. Symphysiotomy Symphysiotomy
    Symphysiotomy: A surgical procedure to effect an immediate dramatic increase in the size of the pelvic outlet to permit delivery of a baby. The cartilage of the symphysis pubis (where the pubic bones come together) is surgically divided in the procedure which can be a life-saver for the baby....
  11. Symphysis pubis Symphysis pubis
    Symphysis pubis: The area in the front of the pelvis where the pubic bones (the two bones of the pubis) meet....
  12. Symptom Symptom
    Symptom: Any subjective evidence of disease. Anxiety, lower back pain, and fatigue are all symptoms. They are sensations only the patient can perceive. In contrast, a sign is objective evidence of disease. A bloody nose is a sign. It is evident to the patient, doctor, nurse and other observers....
  13. Symptom of pregnancy Symptom of pregnancy
    Symptom of pregnancy: See: Pregnancy symptom....
  14. Symptomatic Symptomatic
    Symptomatic: 1 With symptoms, as a symptomatic infection. 2 Characteristic, as behavior symptomatic of Huntington disease. 3 Directed at the symptoms, as symptomatic treatment....
  15. Symptomatic treatment Symptomatic treatment
    Symptomatic treatment: Therapy that eases the symptoms without addressing the basic cause of the disease. For example, symptomatic treatment of advanced lung cancer that has spread (metastasized) beyond the lung is designed to decrease the pain and other symptoms but not to eradicate the disease. ...