Learn how to say Calciferol correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word calciferol:
[mass noun] Biochemistry
one of the D vitamins, a sterol which is formed when its isomer ergosterol is exposed to ultraviolet light, and which is routinely added to dairy products. Also called ergocalciferol, vitamin D2.
1930s: from calciferous + -ol