Chromium
['krəʊmɪəm] or ['kromɪəm]
Definition
(noun.) a hard brittle multivalent metallic element; resistant to corrosion and tarnishing.
Typist: Meg--From WordNet
Definition
(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.
Typist: Vern
Examples
- The ruby owes its fine red color to the presence of oxide of chromium; the sapphire its deep blue to either a lower oxide of chromium or to an oxide of titanium. Various. The Wonder Book of Knowledge.
- Thus we have nickel, chromium, and tungsten steel. William Henry Doolittle. Inventions in the Century.
- The ruby, chemically considered, is crystallized alumina, or oxide of aluminum, with a small percentage of oxide of chromium. Various. The Wonder Book of Knowledge.
- He now turned to the use of almost infusible metals--such as boron, ruthenium, chromium, etc. Frank Lewis Dyer. Edison, His Life and Inventions.
- The new processes depend chiefly on the use of chromium compounds. William Henry Doolittle. Inventions in the Century.
- A great variety of methods for coating incandescent lamp filaments with silicon, titanium, chromium, osmium, boron, etc. Frank Lewis Dyer. Edison, His Life and Inventions.
Inputed by Barnard