ariboflavinosis

noun

ari·​bo·​fla·​vin·​osis ˌā-ˌrī-bə-ˌflā-və-ˈnō-səs How to pronounce ariboflavinosis (audio)
: a deficiency disease due to inadequate intake of riboflavin and characterized by sores on the mouth

Word History

Etymology

a- entry 2 + riboflavin + -osis

First Known Use

1939, in the meaning defined above

Time Traveler
The first known use of ariboflavinosis was in 1939

Rhymes for ariboflavinosis

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Browse Nearby Words

Arias Sánchez
ariboflavinosis
Arica
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Cite this Entry

“Ariboflavinosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ariboflavinosis. Accessed 8 Jul. 2026.

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Medical Definition

ariboflavinosis

noun
ari·​bo·​fla·​vin·​osis ˌā-ˌrī-bə-ˌflā-və-ˈnō-səs How to pronounce ariboflavinosis (audio)
plural ariboflavinoses -ˌsēz How to pronounce ariboflavinosis (audio)
: a deficiency disease due to inadequate intake of riboflavin and characterized by sores on the mouth

called also hyporiboflavinosis

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