Calcitriol
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.
Pharmacology. a preparation of this compound, used in the treatment of osteoporosis and bone fracture.
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- Calcitrant
adj.
- Calcium
a silver-white divalent metal, occurring combined in limestone, chalk, gypsum, etc., occurring also in vertebrates and other animals, as a component of bone, skeletal mass, shell, etc., and as a necessary element in nerve conduction, heartbeat, muscle contraction, and many other physiological functions. Symbol: Ca; atomic weight: 40.08; atomic number: 20; specific gravity: 1.55 at […]
- Calcium-antagonist
noun another name for calcium channel blocker
- Calcium-arsenate
a white, slightly water-soluble, poisonous powder, Ca 3 (AsO 4) 2 , used as an insecticide and as a germicide.
- Calcium-blocker
any of a group of drugs that prevent the influx of calcium into excitable tissues such as smooth muscle of the heart or arterioles, used in the treatment of angina, hypertension, and certain arrhythmias.