Cobalamin

//koʊˈbæləmɪn// noun

Definitions

Noun
  1. 1
    Any of several forms of vitamin B₁₂ depending on the upper axial ligand of the cobalt ion.
  2. 2
    a B vitamin that is used to treat pernicious anemia wordnet

Etymology

Blend of cobalt + vitamin, 1950s.

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