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 (sī′ə-nō′kō-băl′ə-mĭn, sī-ăn′ō-)
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌsaɪənəʊkəʊˈbæləmɪn) or


(Biochemistry) a complex red crystalline compound, containing cyanide and cobalt and occurring in liver: lack of it in the tissues leads to pernicious anaemia. Formula: C63H88O14N14PCo. Also: vitamin B12
[C20: from cyano- + cobal(t) + (vit)amin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

vitamin B1


vitamin B2


vitamin B3


vitamin B6


vitamin B12

a complex water-soluble solid, C63H88N14O14PCo, obtained from liver, milk, eggs, fish, oysters, and clams: a deficiency causes pernicious anemia and disorders of the nervous system. Also called cyanocobalamin, cobalamin, extrinsic factor.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cyanocobalamin - a B vitamin that is used to treat pernicious anemiacyanocobalamin - a B vitamin that is used to treat pernicious anemia
B complex, B vitamin, B-complex vitamin, vitamin B, vitamin B complex, B - originally thought to be a single vitamin but now separated into several B vitamins
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n. cianocobalamina, vitamina B12 usada en el tratamiento de la anemia perniciosa.
English-Spanish Medical Dictionary © Farlex 2012


n cianocobalamina, vitamina B12
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
There are a variety of symptoms that come with a B12 deficiency.
In this study, (2) 36 vegetarian (including vegan) adults who were marginally deficient in vitamin B12 based on their blood vitamin B12 levels, were randomly divided into two groups.
A Researchers have identified an association between vitamin B12 deficiency and cognitive impairment.
Methods: The study group consisted of 215 infants who were tested for serum B12 and bilirubin levels out of 335 cases referred to the Centre from June 2011 to 2016 as a part of the screening program established by the Ministry of Health.
The vitamin (also known as cobalamin) is an essential dietary component but vegetarians are more prone to B12 deficiency as plants neither make nor require this nutrient.
Seniors have more difficulty absorbing B12 from food because they produce less stomach acid (which releases B12 bound to food into the body) and thus should consume fortified foods to make up the difference.
officinalis) on fasting blood glucose (FBG), hemoglobin A1c (HbA1c), and Vitamin B12 levels in healthy human compared to Type 2 diabetic patients incorporated to glucomid and/or metformin treatment.
Low vitamin B12 levels ([beta] = -0.29, p=0.004) significantly predicted high fasting blood sugar levels in pregnancy even after adjusting for gestational age and gravidity.
Mean vitamin B12 levels were significantly lower among obese children than healthy volunteers (p<0.001).
According to ( Newsmax , vegetarians, pregnant women, heavy drinkers, and smokers require vitamin B12 supplements and are more prone to its deficiency.