from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A silvery, moderately hard metallic element that constitutes approximately 3 percent of the earth's crust and is a basic component of most animals and plants. It occurs naturally in limestone, gypsum, and fluorite, and its compounds are used to make plaster, quicklime, Portland cement, and metallurgic and electronic materials. Atomic number 20; atomic weight 40.08; melting point 842 to 848°C; boiling point 1,487°C; specific gravity 1.55; valence 2. See Table at element.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A chemical element, atomic number 20, that is an alkaline earth metal and occurs naturally as carbonate in limestone and as silicate in many rocks.
from the GNU version of the Collaborative International Dictionary of English
- n. An elementary substance; a metal which combined with oxygen forms lime. It is of a pale yellow color, tenacious, and malleable. It is a member of the alkaline earth group of elements. Atomic weight 40. Symbol Ca.
from The Century Dictionary and Cyclopedia
- n. Chemical symbol, Ca; atomic weight, 40. A metal having a light-yellow color and brilliant luster, about as hard as gold, very ductile, and having a specific gravity of about 1.57.
- n. A calcium light.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
In muscle cells a rise in calcium is the signal for muscular work.
This heightened risk of osteoporosis is probably due to the drastic drop in calcium and vitamin D absorption that occurs with these drugs.
Its a HUGE HUGE source of calcium and a way to get calcium from a source other than dairy.
It is supposed high in calcium for the growing bones.
On the other hand, you can steam only one layer of veg at a time if the steam is to surround and cook them evenly; steaming also takes longer than boiling, because boiling water dissolves and extracts some pectin and calcium from the cell walls, and steaming doesn't.
It's high in calcium and probiotics and is much cheaper than cheese.
Anyway, those who could drink milk could gain calcium, which would help counter the effects of the loss of vitamin D.
So a lot people who are avoiding dairy still need their source of calcium and the best source of calcium is naturally through cheese, yogurt, or milk.
But it is substantially lower in calcium than regular varieties (about 150 milligrams of calcium per 8 ounces versus the 300 to 450 milligrams in plain regular yogurt).
When they understood the mechanisms, the researchers developed a class of experimental drugs that block the leaks in calcium channels in the heart muscle.