• synonyms


noun Pathology.
  1. an abnormal condition caused by an excessive intake of vitamins.
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Origin of hypervitaminosis

First recorded in 1925–30; hyper- + vitamin + -osis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for hypervitaminosis


  1. pathol the condition resulting from the chronic excessive intake of vitamins
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Word Origin

C20: from hyper- + vitamin + -osis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

hypervitaminosis in Medicine


  1. 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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.