Definition of "cyanocobalamin" []

• See vitamin B12. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "I speak as a former vegetarian whose life was destroyed by supplementing with the wrong cobalamin, the inactive cyanocobalamin which is very stable and very ineffective in many peolple."
• "Vitamin B12 (cyanocobalamin) - for pernicious anemia only"
• "The coenzyme, a few years ago obtainable with difficulty in milligram quantities, can now be prepared very easily from cyanocobalamin -- Dr. Lester Smith has made crystals 0.5 cm across."