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calcitriol

[kal-si-tree-awl, -ol] /kælˈsɪ triˌɔl, -ˌɒl/
noun
1.
Biochemistry. a vitamin D compound, C 27 H 44 O 3 , occurring in humans as a hormone derived from cholesterol, that acts in the regulation and absorption of calcium.
2.
Pharmacology. a preparation of this compound, used in the treatment of osteoporosis and bone fracture.
Origin
1975-1980
1975-80; apparently calci(um) + triol
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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