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• Dysarthria

  Dysarthria: Speech that is characteristically slurred, slow, and difficult to understand. A person with dysarthria may also have problems controlling the pitch, loudness, rhythm, and voice qualities of his or her speech. Dysarthria is caused by paralysis, weakness, or inability to coordinate the muscles of the mouth. Dysarthria can occur as a developmental disability. It […]

• Dyscalculia

  Dyscalculia: A specific developmental disability that affects a person’s ability to conceptualize and perform mathematics. Mild cases can often be compensated for with use of a calculator, but those with severe dyscalculia need special education services.

• Dyscrasia

  Dyscrasia: Any disease condition, especially in hematology, as in “blood dyscrasias.” The term “dyscrasia” was borrowed from the Greek meaning “a bad mixture” referring to the ancient belief that an imbalance between the four humors – blood, phlegm, yellow bile, and black bile- which caused disease.

• Dysentery

  Dysentery: Inflammation of the intestine, with pain, diarrhea, bloody stools, and often a fever above 38.3’C (101’F). The causes of dysentery include bacteria (such as Shigella), protozoa (such as amebae), parasitic worms (such as schistosomes), and viruses. Dysentery can be fatal because it can cause severe dehydration. Treatment includes rapid rehydration, sometimes via IV, and […]

• Dysentery, amebic

  Dysentery, amebic: Inflammation of the intestine due to infection with the ameba Entamoeba histolytica. Amebic dysentery can be accompanied by amebic infection of the liver and other organs.

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