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Longman Dictionary of Contemporary English
▪ But just as uncertain is whether anyone needs to take chromium at all.
▪ But, as with chromium picolinate, the stars of various supplements rise and fall in the media faster than Hollywood careers.
▪ He smelled the bitter fragrance of ablated chromium steel.
▪ High levels of cadmium, lead and chromium were also found in sediment in the Dogger Bank.
▪ Inorganic chemistry in particular provided the bulk of new pigments based on chromium, cadmium, cobalt, zinc, copper and arsenic.
▪ Physicians then found that some diabetics were able to tolerate sugar better when they were given some chromium.
▪ She's misjudged the weight of the chromium door and crushed her big toe.
▪ The chromium, used to prevent pipe corrosion, was released from 1951 until 1966, but lingered in groundwater.
The Collaborative International Dictionary

Chromium \Chro"mi*um\, n. [NL., fr. Gr. ? color.] (Chem.) 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.

Douglas Harper's Etymology Dictionary

metallic element, 1807, with metallic elemental suffix -ium + French chrome (Fourcroy and Haüy), from Greek chroma "color" (see chrome; also see chroma). So called for its colorful compounds. Related: Chromite.


n. A metallic chemical element (''symbol'' Cr) with an atomic number of 24.


n. a hard brittle blue-white multivalent metallic element; resistant to corrosion and tarnishing [syn: Cr, atomic number 24]


Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-grey, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point. The name of the element is derived from the Greek word χρῶμα, chrōma, meaning color, because many of the compounds are intensely colored.

Ferrochromium alloy is commercially produced from chromite by silicothermic or aluminothermic reactions; and chromium metal by roasting and leaching processes followed by reduction with carbon and then aluminium. Chromium metal is of high value for its high corrosion resistance and hardness. A major development was the discovery that steel could be made highly resistant to corrosion and discoloration by adding metallic chromium to form stainless steel. Stainless steel and chrome plating ( electroplating with chromium) together comprise 85% of the commercial use.

Trivalent chromium (Cr(III)) ion is an essential nutrient in trace amounts in humans for insulin, sugar and lipid metabolism, although the issue is debated.

While chromium metal and Cr(III) ions are not considered toxic, hexavalent chromium (Cr(VI)) is toxic and carcinogenic. Abandoned chromium production sites often require environmental cleanup.

Chromium (computer graphics)

Chromium is an OpenGL implementation. Unlike other OpenGL implementations, Chromium does not render the OpenGL command stream to a raster image in order to display on-screen. Instead, it manipulates, and moves the OpenGL command stream to other '''OpenGL '''implementations (including even other Chromium implementations).

Chromium provides an infrastructure in which modules, known as SPUs or Stream Processing Units, can be inserted. For each OpenGL command, a SPU can modify, discard, or forward it to the next SPU. Chromium supports a client/server architecture. The last SPU in a node can choose to either pass it to another local OpenGL implementation, such as an ATI or nVidia graphics card, or send it over a network to one or more Chromium Servers.

Uses include:

  • Providing OpenGL for multi-machine, multi-monitor displays. Chromium can be used to provide OpenGL for Xdmx displays.
  • Moving an OpenGL stream from one machine to another. For example, an OpenGL application running in a Windows virtual machine, without 3D acceleration, can make use of full hardware 3D acceleration on a Linux host machine via the use of Chromium.
  • Manipulating an OpenGL stream. Chromium can be used to make polygons an application renders transparent.
  • Via stream manipulation, Chromium can make non-stereoscopic applications stereoscopic.
  • High performance, sort-last configurations. Chromium can be used to split an OpenGL command stream, so that different machines can do different parts of the rendering work. This is like nVidia's SLI but it supports multiple machines.
Chromium (disambiguation)

Chromium is a chemical element.

Chromium may also refer to:

  • Chromium (computer graphics), a system for OpenGL rendering on clusters of computers
  • Chromium (web browser), the open source counterpart to Google Chrome
    • Chromium OS, the open source operating system counterpart to Google Chrome OS
Chromium (web browser)

Chromium is the open-source web browser project from which Google Chrome draws its source code. The browsers share the majority of code and features, though there are some minor differences in features and they have different licensing.

The Chromium Project takes its name from the element chromium, the metal from which chrome plating is made. Google's intention, as expressed in the developer documentation, was that Chromium would be the name of the open-source project and that the final product name would be Chrome; however, other developers have taken the Chromium code and released versions under the Chromium name. These are listed under community packages.

One of the major aims of the project is for Chromium to be a tabbed window manager, or shell for the web, as opposed to it being a traditional browser application. The application is designed to have a minimalist user interface. The developers state that it "should feel lightweight (cognitively and physically) and fast."

Usage examples of "chromium".

When sulphuric acid is used as the assistant along with the bichrome, then there is formed on the wool fibre a deposit of chromic acid and chromium oxide, and this exerts an oxidising effect on the colouring matter or dye-stuff, which in some cases, as the Alizarine Blue, Alizarine Yellow, etc.

His photographs of sexual acts, of sections of automobile radiator grilles and instrument panels, conjunctions between elbow and chromium window-sill, vulva and instrument binnacle, summed up the possibilities of a new logic created by these multiplying artefacts, the codes of a new marriage of sensation and possibility.

The fragments found later by Dawson and Woodward together were not soaked in potassium dichromate and hence had no chromium in them.

Unless he had said something, I figured, not even Inototsu was crafty enough to connect me with the consignments of hexavalent chromium.

He certainly knew both that the hexavalent chromium came from there and that Inototsu was my biological father.

Not only that, I paid him a straight twenty percent commission on the hexavalent chromium business.

With claws clutching the chromium surface of the three-foot tube, Jark began to tug the machine clear of the wall.

The residue may consist of unremoved silica, and oxides of tantalum, niobium, and, perhaps, chromium.

Aluminum was added to an oxide of another, less reactive metal, such as chromium, manganese, vanadium, tungsten, or molybdenum.

And, indeed, deep in the crust of the illuminated globe appeared a vague network of vanadiums, chromiums, and platinums, the platinum group including osmium and iridium.

Inside was almost the same photo: me in tweed jacket, machine washable at number five trousers, cor-blimey hat and two-tone shoes, one of them resting on the chromium of an Alfa Spider convertible.

Copper, Silver, Gold, Zinc and Cadmium, Mercury, Tin, Lead, Bismuth, Antimony, Chromium, Molybdenum, Tungsten, Uranium, Manganese, Iron, Nickel, and Cobalt, the Platinum Group.

The room was pin-neat, minimally furnished, scented with perfume, and hung with art posters in chromium frames.

When sulphuric acid is used as the assistant along with the bichrome, then there is formed on the wool fibre a deposit of chromic acid and chromium oxide, and this exerts an oxidising effect on the colouring matter or dye-stuff, which in some cases, as the Alizarine Blue, Alizarine Yellow, etc.

All bore an overabundance of shining metal resembling chromium which was arranged into various shapes like jet tubes, stubby wings or even ancient exhaust pipes.