noun Pathology.
an abnormally high level of glucose in the blood.
Also, hyperglycaemia.

1890–95; < Neo-Latin; see hyper-, glycemia

hyperglycemic, adjective
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World English Dictionary
hyperglycaemia or hyperglycemia (ˌhaɪpəɡlaɪˈsiːmɪə)
pathol an abnormally large amount of sugar in the blood
[C20: from hyper- + glyco- + -aemia]
hyperglycemia or hyperglycemia
[C20: from hyper- + glyco- + -aemia]
hypergly'caemic or hyperglycemia
hypergly'cemic or hyperglycemia

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

1894, Latinized form of Gk. elements hyper- "over" + glykys "sweet" (see glucose) + haima "blood" (see -emia)
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

hyperglycemia hy·per·gly·ce·mi·a (hī'pər-glī-sē'mē-ə)
The presence of an abnormally high concentration of glucose in the blood.

hy'per·gly·ce'mic (-mĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica


elevation of blood glucose concentrations above the normal range; it is the laboratory finding that establishes a diagnosis of diabetes mellitus. Hyperglycemia results from a decrease in the body's ability to utilize or store glucose after carbohydrates are ingested and from an increase in the production of glucose by the liver during the intervals between meals. It is caused by a decrease in the production of insulin, a decrease in the action of insulin, or a combination of the two abnormalities. Mild hyperglycemia causes no symptoms, but more severe hyperglycemia causes an increase in urine volume and thirst, fatigue and weakness, and increased susceptibility to infection. Extremely high blood glucose concentrations result in loss of blood volume, low blood pressure, and impaired central nervous system function (hyperglycemic coma)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
It is not known whether hyperglycemia medications taken by mouth are safe for use in pregnancy.
Depression, in turn, may increase the risk for hyperglycemia and complications of diabetes.
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