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n. pl. hy·per·vi·ta·min·o·ses (-sēz)
Any of various abnormal conditions in which the physiological effect of a vitamin is produced to a pathological degree by excessive intake of the vitamin.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌhaɪpəˌvɪtəmɪˈnəʊsɪs; -ˌvaɪ-)
(Pathology) pathol the condition resulting from the chronic excessive intake of vitamins
[C20: from hyper- + vitamin + -osis]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌhaɪ pərˌvaɪ tə məˈnoʊ sɪs)

an abnormal condition caused by an excessive intake of vitamins.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hypervitaminosis - an abnormal condition resulting from taking vitamins excessively; can be serious for vitamins A or D or K
abnormalcy, abnormality - an abnormal physical condition resulting from defective genes or developmental deficiencies
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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References in periodicals archive ?
An outbreak of hypervitaminosis D associated with the overfortification of milk from a home-delivery dairy.
Hypervitaminosis of vitamin A that means the excess, may be accompanied by headache, drowsiness, peeling of the skin and gastrointestinal nausea and vomiting.
Calcium (Ca) levels may rise with renal illnesses, some cancers, hypervitaminosis D, the ingestion of certain rodenticides, and some granulomatous fungal diseases.
(4,5) A case series study concluded that hypervitaminosis is the most important differential diagnosis of patients with hypercalcemia, particularly in endemically vitamin D deficient regions.
A great number of systemic diseases (Polycystic ovary syndrome), drugs (growth hormone, tetracyclines, and retinoids), vitamin deficiency and excesses (Hypervitaminosis A), recent weight gain and hereditary conditions probably increase the incidence of IIH.
Hypervitaminosis D and toxicity is rare and results after prolonged ingestion of large VD doses or use of overzealous VD supplementation with mega dose preparations and can give rise to hypercalcaemia and hypercalciuria.
VO completely protected against J-galactosamine hepatotoxicity (123), alleviated CCl4-induced suppression of CYP2B, CYP3A2, CYP2C11 and CYP1A2 (124), protected liver against the effects of hypervitaminosis A (125), against I/R injury (126), and decreased lipid peroxidation, liver enzymes and increased antioxidant enzyme levels (127,128).
Angular cheilitis occurs more commonly in diabetics, in patients with some psychiatric disorders (e.g., lip trauma in bulimics or in anorexia nervosa), during certain drug therapy (e.g., isotretinoin), and somewhat less frequently in primary hypervitaminosis A.
Therefore, vitamin D synthesis was thought to be increased by sunlight, and this did not cause hypervitaminosis or hypercalciuria (11).
Stumpe, "An experimental histologic study of hypervitaminosis D," American Journal of Pathology, vol.