calciferol

Coined in 1931 as a blend of calciferous +‎ sterol (see quote below).

calciferol (uncountable)

1. Vitamin D₃ (C₂₇H₄₄O)
   • 1931 June 1, T. C. Angus, F. A. Askew, R. B. Bourdillon, Hilda M. Bruce, Robert Kenneth Callow, Catherine Fischmann, J. St L. Philpot, T. A. Webster, “A crystalline antirachitic substance”, in Proceedings of the Royal Society B, volume 108, number 757, →DOI, page 340:

     Owing to the exceptional difficulty of purification in the sterol group, we cannot yet be certain that this substance is a single compound, but we think the provisional adoption of a new name is justified, for the sake of convenience, and suggest “Calciferol” in view of the high antirachitic activity of the substance.

• cholecalciferol

• calcitriol

• Cholecalciferol on Wikipedia.Wikipedia
• Category:Cholecalciferol on Wikimedia Commons.Wikimedia Commons

Borrowed from French calciférol.

calciferol n (uncountable)

1. calciferol