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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.


(ˌhaɪpəˌvɪtəmɪˈnəʊsɪs; -ˌvaɪ-)
(Pathology) pathol the condition resulting from the chronic excessive intake of vitamins
[C20: from hyper- + vitamin + -osis]


(ˌhaɪ pərˌvaɪ tə məˈnoʊ sɪs)

an abnormal condition caused by an excessive intake of vitamins.
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
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References in periodicals archive ?
htm) Acute hypervitaminosis  is a severe condition resulting from consuming too much vitamin A during a short period of time.
Idiopathic rICP has been reported in several studies and also as a complication of a list of drugs, including chlordecone (kepone), ketoprofen or indomethacin in Bartter's syndrome, thyroid replacement therapy in hypothyroid children, tetracycline and its derivatives, amiodarone, hypervitaminosis A, lithium carbonate, nalidixic acid, sulfa antibiotics and risperidone.
9] Hypervitaminosis A in the cat can cause bridging type of vertebral osteophytes.
Parentral administration of Vitamin A should be used with caution, due to the risks of developing hypervitaminosis A which can be just as fatal (Boyer 1996).
Treatment was well tolerated, and no patients suffered hypervitaminosis or required a dose adjustment.
Osteomyelitis, chronic hypervitaminosis A, scurvy and child abuse are common differentials.
Khan AH, Majid H, Iqbal R Shifting of vitamin D deficiency to hypervitaminosis and toxicity.
Correcting a misrepresentation of hypervitaminosis A attributed to Herbalife product consumption.
Headache, vomiting, loss of appetite, dry and scaly skin, bone and joint pain, nerve and liver damage, abnormal bone growth, and birth defects are symptoms of hypervitaminosis A.
6) Many authors have also suggested hereditary involvement as an autosomal dominant trait with reduced penetrance, trauma and environmental factors such as thalidomide, embryopathy, fetal alcohol exposure or hypervitaminosis.
Microscopic examination of dead budgerigars later in the course of the investigation revealed mineralization of soft tissues consistent with hypervitaminosis D.
15] The symptoms of hypervitaminosis D appear several months after administration of overdoses of vitamin D, which are dehydration, vomiting, decreased appetite, irritability, constipation, fatigue, and muscle weakness.