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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 - «H»:

  1. Hepatosplenomegaly Hepatosplenomegaly
    Hepatosplenomegaly: Enlargement of the liver and spleen. The word "hepatosplenomegaly" is compounded from Greek roots: "hepato-" from "hepatikos" (of the liver) + "spleno" from "splen" (the spleen) + "megaly" from "megas" (big or great) = bigness of the liver and spleen. ...
  2. Hepatotoxic Hepatotoxic
    Hepatotoxic: Injurious to the liver. For example, acetaminophen (Tylenol) can be hepatotoxic. ...
  3. Heptad repeat Heptad repeat
    Heptad repeat: A type of tandem repeat sequence in which a group of seven aminoacids occurs many times in a protein sequence. Heptad repeats are characteristic of certain proteins such as the intermediate filament proteins....
  4. HER1 HER1
    HER1: See: EGFR....
  5. HER2 HER2
    HER2: Abbreviation for human epidermal growth factor receptor 2. HER2 is expressed by, and involved in the growth of, some cancer cells. For example, a minority of breast cancers express HER2 protein. Also called c-erbB-2....
  6. Hera Hera
    Hera: In Greek mythology, a protector of women, who with her daughter Eileithyia was often called upon during childbirth....
  7. Herbal Herbal
    Herbal: 1. An adjective, referring to herbs, as in an herbal tea. 2. A noun, usually reflecting the botanical or medicinal aspects of herbs; also a book which catalogs and illustrates herbs. The word "herbal" was pronounced with a silent "h" on both sides of the Atlantic until the 19th century but t...
  8. Herbal remedy Herbal remedy
    Herbal remedy: A medication prepared from plants, including most of the world's traditional remedies for disease. Most people think of herbal remedies as products sold over the counter as "supplements", such as saw palmetto extract or goldenseal ointment. However, many over- the-counter and pres...
  9. Herbalism Herbalism
    Herbalism: The practice of making or prescribing herbal remedies for medical conditions. Practitioners of herbalism may be licensed MDs, naturopaths, or osteopaths. They may also be unlicensed. Interested consumers should seek out knowledgeable, and preferably licensed, herbalists....
  10. Herbalist Herbalist
    Herbalist: One versed in herbal lore and, in regard to therapy, an herb doctor. ...
  11. Herbicidal Herbicidal
    Herbicidal: Capable of controlling or destroying plants, weeds, or grasses....
  12. Herbicide Herbicide
    Herbicide: A chemical pesticide designed to control or destroy plants, weeds, or grasses. Herbicides tend to have wide-ranging effects on non-target species (other than those the pesticide is meant to control or kill)....
  13. Herbicide chemical 2,4-DCP Herbicide chemical 2,4-DCP
    Herbicide chemical 2,4-DCP: A poisonous chemical used to produce a herbicide. 2,4-DCP (short for 2,4-dichlorophenol) is employed in the manufacture of the herbicide 2,4-D (which is short for 2,4-dichloropheoxyacetic acid). 2,4-DCP is so highly toxic that even a small amount on the skin can be leth...
  14. Hereditary ALS Hereditary ALS
    Hereditary ALS: See: Familial ALS....
  15. Hereditary amyloidosis Hereditary amyloidosis
    Hereditary amyloidosis: A familial (inherited) disorder in which protein deposits (amyloid) accumulate in one or more organ systems in the body. Hereditary amyloidosis is a relatively uncommon cause of amyloidosis. The more common forms of amyloidosis are primary an secondary amyloidosis. However, h...