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The following 3 entries include the term 2,5.
1,25-dihydroxycholecalciferol
noun25-hydroxycholecalciferol
noun: a sterol C27H44O2 that is a metabolite of cholecalciferol formed in the liver, is the circulating form of vitamin D, and has some activity in maintaining calcium homeostasis and preventing rickets
LSD-25
noun-
- Before we went to her house, Hannah told us her aunt was a flibbertigibbet.


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Merriam-Webster unabridged