| copper |
Copper is a trace element that is essential for most animals, including humans. It is needed to absorb and utilize iron. The influence of copper upon health is due to the fact it is part of enzymes, which are proteins that help biochemical reactions occur in all cells. Copper is involved in the absorption, storage and metabolism of iron. The symptoms of a copper deficiency are similar to iron deficiency anemia. ...
출처: www.nutritiondata.com/glossary.html
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| copper |
a natural weathering metal used in metal roofing; typically used in 16 or 20 ounce per square foot thickness (4.87 or 6.10 kg/sq m).
출처: www.ballendorfer.com/glossary/glossaryC.htm
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| copper |
A trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63. It is essential in nutrition, being a component of various proteins, including ceruloplasmin, erythrocuprein, cytochrome c oxidase, tyrosinase, etc. Deficiency, which is rare, may result in hypochromic microcytic anemia, neutropenia, or bone changes.
출처: www.nutritionperspectives.com/Other/siteGlossary.c...
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| copper |
an soft, heavy, brown metal, copper is an excellent conductor of heat and electricity. Pure corrodes easily, and is often clad in varnish of plastic as both an electrical insulator and to reduce corrosion. Copper is never used structurally, because of its expense and its property of work-hardening, in which it becomes more brittle with repeated stress or motion.
출처: www.autocenter.com/about/
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| copperhead |
A species of snake. In the intensity of feeling during the Civil War, Northern men who were suspected of sympathising with the secessionists were stigmatized as copperhead. Many political terms, born of derision, acquired respectability; but it was not so in this case, and after the passions of the war had cooled off, the term was dropped.
출처: www.people.virginia.edu/~rmf8a/gaskell/poldict.htm
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