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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «E»:

  1. Ehlers-Danlos syndrome, dermatosparaxis type Ehlers-Danlos syndrome, dermatosparaxis type
    Ehlers-Danlos syndrome, dermatosparaxis type: A genetic disorder characterized by extremely fragile and sagging skin caused by mutation in the ADAMTS2 gene. People with this form of Ehlers-Danlos syndrome have soft, doughy skin that is very fragile and bruises easily. The skin sags and wrinkles, and...
  2. Ehrlich, Paul Ehrlich, Paul
    Ehrlich, Paul: (1854-1915) Renowned German scientist and physician. Born near Breslau, Ehrlich got his start there working in the laboratory of his cousin, Carl Weigert, a pathologist who pioneered the use of aniline dyes as biological stains. Ehrlich became interested in the selectivity of these dy...
  3. Ehrlichiosis Ehrlichiosis
    Ehrlichiosis: An acute (abrupt onset) disease, first reported in humans in 1986, due to infection by the rickettsial agent, Ehrlichia canis. The brown dog tick, is the common vector (carrier). Ehrlichiosis is clinically similar to Rocky Mountain spotted fever with high fever, headache, malaise, ...
  4. Eicosanoid Eicosanoid
    Eicosanoid: A lipid mediator of inflammation derived from the 20-carbon atom arachidonic acid (20 in Greek is "eicosa") or a similar fatty acid. The eicosanoids include the prostaglandins, prostacyclin, thromboxane, and leukotrienes....
  5. Eicosapentaenoic acid Eicosapentaenoic acid
    Eicosapentaenoic acid: One of the principal omega-3 fatty acids. Abbreviated EPA. The body has a limited ability to manufacture EPA by converting the essential fatty acid, alpha-linolenic acid (ALA) which is found in flaxseed oil, canola oil or walnuts....
  6. Eidetic Eidetic
    Eidetic: 1. Marked by extraordinarily accurate and vivid recall, especially of images. 2. By extension, an individual with such exceptional powers. Eidetic memory is the ability to see in one's mind's eye in the most minute detail. From the German eidetisch, from the Greek eidetikos and eidos (for...
  7. Eight-day measles Eight-day measles
    Eight-day measles: An acute highly contagious viral disease with fever, runny nose, cough, red eyes, and a spreading skin rash. The eight-day measles is the ordinary measles, also known as rubeola, a potentially disastrous disease. Measles may be complicated by ear infections, pneumonia, e...
  8. Eighth cranial nerve Eighth cranial nerve
    Eighth cranial nerve: The eighth cranial nerve is the vestibulocochlear nerve. The vestibulocochlear nerve is responsible for the sense of hearing and it is also pertinent to balance, to the body position sense. Problems with the vestibulocochlear nerve may result in deafness, tinnitus (ringing o...
  9. Eileithyia Eileithyia
    Eileithyia: In Greek mythology, a protector of women who, with her mother Hera, was often called upon during childbirth....
  10. Eisoptrophobia Eisoptrophobia
    Eisoptrophobia: An abnormal and persistent fear of mirrors. Sufferers experience undue anxiety even though they realize their fear is irrational. Because their fear often is grounded in superstitions, they may worry that breaking a mirror will bring bad luck or that looking into a mirror will put t...
  11. Ejaculate Ejaculate
    Ejaculate: To ejaculate is to release semen during an orgasm in a male. The ejaculate (used as a noun) is the semen....
  12. Ejaculation Ejaculation
    Ejaculation: Ejection of sperm and seminal fluid....
  13. Ejaculatory duct Ejaculatory duct
    Ejaculatory duct: A canal in the male formed by union of the vas deferens and the duct from the seminal vesicle. The ejaculatory duct passes through the prostate. Semen passes through them at the time of ejaculation....
  14. Ejection fraction Ejection fraction
    Ejection fraction: The portion of blood that is pumped out of a filled ventricle as a result of a heartbeat. The heart does not eject all of the blood that is in the ventricle. Only about two-thirds of the blood is normally pumped out with each beat. That fraction is referred to the ejection fracti...
  15. ELA2 ELA2
    ELA2: The gene encoding the enzyme elastase 2 (neutrophilic elastase). Mutations in ELA2 cause cyclic neutropenia. See: Elastase 2....