from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A lustrous, hard, steel-gray metallic element, resistant to tarnish and corrosion and found primarily in chromite. It is used in the hardening of steel alloys and the production of stainless steels, in corrosion-resistant decorative platings, and as a pigment in glass. Atomic number 24; atomic weight 51.996; melting point 1,890°C; boiling point 2,482°C; specific gravity 7.18; valence 2, 3, 6. See Table at element.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A metallic chemical element (symbol Cr) with an atomic number of 24.
from the GNU version of the Collaborative International Dictionary of English
- n. A comparatively rare element occurring most abundantly in the mineral chromite. Atomic weight 52.5. Symbol Cr. When isolated it is a hard, brittle, grayish white metal, fusible with difficulty. Its chief commercial importance is for its compounds, as potassium chromate, lead chromate, etc., which are brilliantly colored and are used dyeing and calico printing. Called also chrome.
from The Century Dictionary and Cyclopedia
- n. Chemical symbol, Cr; atomic weight, 52.3; specific gravity, 6.8-7.3. An element belonging to the metals, obtained in the pure state as a light-green crystalline powder.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a hard brittle multivalent metallic element; resistant to corrosion and tarnishing
Results from the recent samples indicate most of the chromium is of the benign variety, health department spokesman Guillermo Cole said Friday.
Once again, chromium is also essential to life ....
The name chromium was derived from the Greek word chroma which means color, in reference to the fact that chromium is known to cause a number of colors in a variety of materials.
Broccoli is packed with vitamin C, beta-carotene, indole, glutathione and lutein, and is also a rich source of the trace metal chromium, which is a life extender and protects against the ravages of out-of-control insulin and blood sugar.
This is an improvement over hexavalent chromium, which is classified as a known human carcinogen.
The legal case involved the contamination of drinking water in Hinkley, California, by the carcinogen known as chromium (VI).
This material was identified as chromium oxide (CrO3) by Louis-Nicholas Vauquelin.
According to the article, these surveys found high levels of hexavalent chromium, which is used to plate metal and rust-proof aircraft engine parts, in the soil.
Chromite is an essential raw material for the production of chromium, which is used in the production of stainless steel.
A federal magistrate in Portland has allowed a group of 21 soldiers, who believe they were exposed to hexavalent chromium, which is known to cause cancer, to continue their suit against a military contractor in Iraq.