viosterol
Definition
Noun: A form of vitamin D, specifically vitamin D₂ (ergocalciferol), which is produced by irradiating ergosterol. It is a fat-soluble substance historically used to prevent and treat rickets, a bone disease caused by vitamin D deficiency.
Usage
This is a technical and somewhat dated term, primarily used in historical, medical, or nutritional contexts to refer to a specific preparation of vitamin D. * The doctor prescribed viosterol to strengthen the child's bones. * Early nutritional supplements often contained viosterol as a source of vitamin D.
Advanced Usage
- Historical Context: The term was more common in the early to mid-20th century following the discovery that ultraviolet irradiation of certain substances produced an anti-rachitic (rickets-preventing) factor.
- Chemical Precursor: Viosterol is produced from ergosterol, a compound found in fungi and plants, through irradiation.
Variants and Related Words
- Ergocalciferol (n): The modern, systematic chemical name for vitamin D₂, synonymous with viosterol.
- Calciferol (n): Another historical name for vitamin D₂.
- Vitamin D (n): The general category of fat-soluble vitamins responsible for calcium absorption, which includes viosterol (D₂) and cholecalciferol (D₃).
Synonyms
- Vitamin D₂
- Ergocalciferol
- Calciferol (in historical contexts)
Related Terms (Not Synonyms)
- Cholecalciferol (n): Vitamin D₃, the form of vitamin D produced by the skin in response to sunlight and found in animal products.
- Rickets (n): The childhood bone disorder that viosterol was used to prevent and treat.
- Irradiation (n): The process of exposing a substance to radiation (e.g., ultraviolet light), which is how ergosterol is converted into viosterol.
Noun
-
a fat-soluble vitamin that prevents rickets
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