1. Noun. ergocalciferol or calciferol; a constituent of vitamin D. ¹
¹ Source: wiktionary.com
Medical Definition of Vitamin D2
1. The vitamin produced by the body when exposed to UV light. Plays important role in calcium and phosphorus metabolism. Deficiency is known as rickets.
Symptoms include soft (weak) and bendable bones, stunted growth, bow legs, chest deformities and knock-knees.
(27 Sep 1997)
