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

Similarly, other research points to deficiencies of some nutrients, like vitamin B12, may be linked to a higher risk of stroke, said Tong. Nina Avramova, CNN, "Vegetarians might have higher risk of stroke than meat eaters, study says," 4 Sep. 2019 Unfortunately, research shows that ingesting garlic and vitamin B12 has no effect on mosquitoes’ thirst for blood. Robert Mccoppin, chicagotribune.com, "Last year, 176 cases of West Nile virus were reported in Illinois. This year, there have only been 2. Here’s why.," 27 Aug. 2019 Other challenging nutrients are vitamin D, vitamin B12 and taurine - an amino acid found in mammalian tissues (humans and dogs can synthesize it from plant sources). Marta Zaraska, chicagotribune.com, "Be leery about vegetarian diets for your pets," 10 July 2019 Aside from making amazing collector's items, the products also contain good-for-you ingredients like skin-brightening vitamin C (in the sheet mask) and hydrating vitamin B12 (in the gloss). Kaleigh Fasanella, Allure, "INC.redible and 90-Year-Old Beauty Influencer Baddie Winkle Just Dropped an Epic Collaboration at Sephora," 26 May 2019 These range from protein to zinc, iron, choline, folate, iodine, vitamin A, vitamin D, vitamin B6, and vitamin B12. Valerie Sweeten, Houston Chronicle, "Healthy meals involve preplanning, interaction," 31 July 2019 Other procedures offered include lip, cheek, nasolabial and under-eye fillers, Botox and Xeomin treatments and vitamin b12 shots, Tannous said. Emily Sorensen, Pomerado News, "Monique’s Skin Care Center under new ownership," 17 July 2019 It is often fortified with vitamin B12, which is especially important for vegans because this essential nutrient is primarily found in animal products. Ellie Krieger, Washington Post, "Two formerly fringe ingredients go mainstream: Nutritional yeast and coconut aminos," 16 July 2019 All were fine in terms of vitamin B12; as for taurine, three cats were found deficient. Marta Zaraska, chicagotribune.com, "Be leery about vegetarian diets for your pets," 10 July 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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Last Updated

15 Sep 2019

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The first known use of vitamin B12 was in 1948

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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

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