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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «T»:

  1. Th1 Th1
    Th1: A distinct type of T-helper cell. See: T-helper cell....
  2. Th2 Th2
    Th2: A distinct type of T-helper cell. See: T-helper cell....
  3. Th3 Th3
    Th3: A distinct type of T-helper cell. See: T-helper cell....
  4. Thai hemorrhagic fever Thai hemorrhagic fever
    Thai hemorrhagic fever: A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage (bleeding) and circulatory collapse (shock). Known also as dengue hemorrhagic fever (DHF), it starts abruptly with high continuous fever and headache plus res...
  5. Thalassemia Thalassemia
    Thalassemia: Not just one disease but rather a complex series of genetic (inherited) disorders all of which involve underproduction of hemoglobin, the indispensable molecule in red blood cells that carries oxygen. The globin part of hemoglobin is made up of 4 polypeptide chains (usually 2 chains of ...
  6. Thalassemia major Thalassemia major
    Thalassemia major: The dire disease also known as beta thalassemia. The clinical picture of this form of anemia was first described in 1925 by the pediatrician Thomas Benton Cooley. Other names for the disease are Cooley's anemia and Mediterranean anemia. The term thalassemia was coined by the Nobel...
  7. Thalassemia minor Thalassemia minor
    Thalassemia minor: Also called thalassemia trait, thalassemia minor is the carrier state for beta thalassemia. People who are carriers (heterozygotes) have just one thalassemia gene, are said to have thalassemia minor, and are essentially normal...
  8. Thalassemia, alpha Thalassemia, alpha
    Thalassemia, alpha: A blood disorder, thalassemia is not one disease but rather a group of disorders that have a single feature in common: they all have a genetic defect in the production of hemoglobin, the protein that enables red blood cells to carry oxygen. All forms of hemoglobin are made up of ...
  9. Thalassemia, beta Thalassemia, beta
    Thalassemia, beta: Also known as thalassemia major .The clinical picture of this important type of anemia was first described in 1925 by the pediatrician Thomas Benton Cooley.. Other names for the disease are Cooley's anemia and Mediterranean anemia. The name thalassemia was coined by the Nobel Priz...
  10. Thalassiosira pseudonana Thalassiosira pseudonana
    Thalassiosira pseudonana: An ocean diatom that is a major participant in the biological pumping of carbon to ocean depths and that has potential for mitigating global climate change. The DNA of this diatom is being sequenced....
  11. Thalidomide baby Thalidomide baby
    Thalidomide baby: An infant affected by prenatal exposure to the drug thalidomide. This medication was prescribed to pregnant women for treatment of morning sickness until removal from the market in 1962. It causes a wide variety of serious birth defects, including short, flipper-like limbs. Mo...
  12. Thallium Thallium
    Thallium: A metallic element having the symbol Tl and the atomic number 81 and an atomic weight of about 204. Thallium enters the environment primarily from coal-burning and smelting, in which it is a trace contaminant of the raw materials. It stays in the air, water, and soil for a long time and i...
  13. Thallium poisoning Thallium poisoning
    Thallium poisoning: Poisoning with the element thallium which enters the environment primarily from coal-burning and smelting. It stays in the air, water, and soil for a long time and is not broken down. It builds up in fish and shellfish. The major source of exposure to thallium for most people is ...
  14. Thallium scan Thallium scan
    Thallium scan: A method of examining the heart to obtain information about the blood supply to the heart muscle. In the scan, special cameras take a series of pictures of the heart. Radioactive thallium is injected into the bloodstream and serves as a tracer. The tracer attaches to certain cells and...
  15. Thanatology Thanatology
    Thanatology: The study of death and dying, including the medical, psychological, and sociologic aspects of it. Each society has its own responses to death and dying. From the Greek thanatos meaning death + -logy....