: disease (such as pellagra) resulting from a deficiency of one or more vitamins

Word History

Etymology

New Latin

First Known Use

1914, in the meaning defined above

Time Traveler
The first known use of avitaminosis was in 1914

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Cite this Entry

“Avitaminosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/avitaminosis. Accessed 7 Apr. 2025.

Medical Definition

avitaminosis

noun
avi·​ta·​min·​osis
ˌā-ˌvīt-ə-mə-ˈnō-səs, British also ˌā-vi-ˌtam-ə-
: disease (as pellagra) resulting from a deficiency of one or more vitamins

called also hypovitaminosis

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