vitamin B12

noun
\ -ˈbē-ˈtwelv How to pronounce vitamin B{inf}12{/inf} (audio) \

Definition of vitamin B12

1 : a complex cobalt-containing compound C63H88CoN14O14P that occurs especially in liver, is essential to normal blood formation, neural function, and growth, and is used especially in treating pernicious and related anemias and in animal feed as a growth factor

called also cyanocobalamin

2 : any of several compounds similar to vitamin B12 in action but having different chemistry

Examples of vitamin B12 in a Sentence

Recent Examples on the Web Iron, calcium and vitamin B12, among other vitamins and minerals, are common deficiencies in these groups of patients. Lisa Drayer, CNN, "Should you take a dietary supplement to prevent disease?," 24 June 2020 YOLO Shots are made with caffeine-deprived from organic green coffee beans, ginseng, taurine, vitamins B12 and B6, and of course, CBD. Allure, "Sunday Scaries Just Launched CBD-Infused Energy Shots," 7 Aug. 2019 Additional testing uncovered that his vitamin B12 deficiency had not waned. Deanna Paul, Twin Cities, "UK teen is legally blind after 7-year diet of french fries, white bread and ham slices, doctors say," 5 Sep. 2019 Additional testing uncovered that his vitamin B12 deficiency had not waned. Deanna Paul, Twin Cities, "UK teen is legally blind after 7-year diet of french fries, white bread and ham slices, doctors say," 5 Sep. 2019 The paper names 12 nutrients key to managing depression and anxiety: folate (vitamin B9), iron, long-chain omega-3 fatty acids, magnesium, potassium, selenium, thiamine (vitamin B1), vitamin A, vitamin B6, vitamin B12, vitamin C and zinc. Kathleen Squires, WSJ, "Feed Your Head: Foods That Target Depression and Anxiety," 26 July 2018 Acevedo also started giving vitamin B12 injections, prescribed by a Defeat Autism Now! Jacqueline Stenson, NBC News, "Why the focus of autism research is shifting away from searching for a 'cure'," 22 Sep. 2019 His doctor treated him with vitamin B12 injections and dietary advice. Beth Mole, Ars Technica, "“Fussy eater” goes blind after years of eating only junk food," 4 Sep. 2019 Additional testing uncovered that his vitamin B12 deficiency had not waned. Deanna Paul, Twin Cities, "UK teen is legally blind after 7-year diet of french fries, white bread and ham slices, doctors say," 5 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vitamin B12.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of vitamin B12

1948, in the meaning defined at sense 1

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The first known use of vitamin B12 was in 1948

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Cite this Entry

“Vitamin B12.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vitamin%20B12. Accessed 27 Oct. 2020.

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More Definitions for vitamin B12

vitamin B12

noun
\ -ˈbē-ˈtwelv How to pronounce vitamin B{inf}12{/inf} (audio) \

Medical Definition of vitamin B12

1 : a complex cobalt-containing compound C63H88CoN14O14P found in animal products (as meat and eggs) that is essential to normal blood formation, neural function, and growth and is used especially in treating pernicious and related anemias and in animal feed as a growth factor

called also cyanocobalamin

2 : any of several compounds similar to vitamin B12 in action but having different chemistry

Comments on vitamin B12

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