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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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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.
Hypervitaminosis A has been observed in both children and adults.