a mixture of lumisterol and calciferol, obtained by ultraviolet irradiation of ergosterol.
Big Vitamin B6-cancer news raises the question: What do the B and 6 mean?
A study published this week in the Journal of the American Medical Association says that smokers with greater amounts of Vitamin B6 may be less likely to develop lung cancer. The findings are preliminary, but have caused a lot of excitement. Behind the promising health news is a great question: Why are vitamins named with various letters and numbers? Does the letter match the name of a chemical, like Vitamin C and citric …
Read more in this article about some frequently asked questions and fun facts related to our definitions.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the first isolated form of vitamin D, consisting of calciferol and its precursor, lumisterol
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012