cyanocobalamin

noun

cy·​a·​no·​co·​bal·​a·​min ˌsī-ə-nō-kō-ˈba-lə-mən How to pronounce cyanocobalamin (audio)
sī-ˌa-nō-
variants or less commonly cyanocobalamine

Examples of cyanocobalamin in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There are two main forms: methylcobalamin (natural form) and cyanocobalamin (synthetic form).78 In more severe cases, your provider may recommend vitamin B12 injections: injecting the vitamin directly into the muscles to ensure the body absorbs it quickly and effectively. Emmanuella Ogbonna, Health, 29 Apr. 2025 Studies suggest that a B12 (cyanocobalamin) and B9 (folate) deficiency may increase the risk of cognitive decline and depression. Sarah Anzlovar, Ms, Rd, Verywell Health, 10 Jan. 2025 Each pill provides 1000 mcg cyanocobalamin (the synthetic form of B12 that the body tends to absorb very well) and should be taken daily with a meal and water. Good Housekeeping, 28 Aug. 2023

Word History

Etymology

cyan- + cobalt + vitamin

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of cyanocobalamin was in 1950

Browse Nearby Words

Cite this Entry

“Cyanocobalamin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cyanocobalamin. Accessed 7 Sep. 2025.

Medical Definition

cyanocobalamin

noun
cy·​a·​no·​co·​bal·​a·​min -kō-ˈbal-ə-mən How to pronounce cyanocobalamin (audio)
variants also cyanocobalamine

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