Definition of dehydrocholesterol
: a crystalline steroid alcohol C27H43OH that occurs chiefly in higher animals and humans (as in the skin), that is made synthetically from cholesterol, and that yields vitamin D3 on irradiation with ultraviolet light —called also 7-dehydrocholesterol
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of dehydrocholesterol
dehydr- + cholesterol
Seen and Heard
What made you want to look up dehydrocholesterol? Please tell us where you read or heard it (including the quote, if possible).