metal


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metal

 [met´'l]
any chemical element marked by luster, malleability, ductility, and conductivity of electricity and heat, and which will ionize positively in solution. adj., adj metal´lic.
alkali metal one of a group of monovalent elements including lithium, sodium, potassium, rubidium, and cesium.
metal fume fever an occupational disorder with malaria-like symptoms occurring in those engaged in welding and other metallic operations and due to the volatilized metals. It includes brassfounder's fever (brass chill, brazier's chill) and spelter's fever (zinc chill, zinc fume fever).
heavy metal one with a high specific gravity, usually defined to be above 5.0.
heavy metal poisoning poisoning with any of the heavy metals, particularly antimony, arsenic, cadmium, lead, mercury, thallium, or zinc.
noble metal a metal that is highly resistant to oxidation and corrosion.

met·al (M),

(met'ăl),
One of the electropositive elements, either amphoteric or basic, usually characterized by properties such as luster, malleability, ductility, the ability to conduct electricity, and the tendency to lose rather than gain electrons in chemical reactions.
[L. metallum, a mine, a mineral, fr. G. metallon, a mine, pit]

metal

An element generally characterised by conductivity, ductility, lustre and malleability.

met·al

(met'ăl)
One of the electropositive elements, either amphoteric or basic, characterized by luster, malleability, ductility, the ability to conduct electricity and heat, and the tendency to lose rather than gain electrons in chemical reactions.
[L. metallum, a mine, a mineral, fr. G. metallon, a mine, pit]

met·al

(met'ăl)
One of the electropositive elements, either amphoteric or basic, characterized by luster, malleability, ductility, the ability to conduct electricity and heat, and the tendency to lose rather than gain electrons in chemical reactions.
[L. metallum, a mine, a mineral, fr. G. metallon, a mine, pit]

Patient discussion about metal

Q. Allergy to Nickel- can it happen? i though that only organic materials can cause allergy… but I started a new job that exposed me to Nickel and have, or so it seems, an allergic reaction to it…

A. Of course it can happen! Here you go:
http://www.mayoclinic.com/health/nickel-allergy/DS00826

Q. I was told that platinum is used in fragrances for the fullness of the spray. Please tell me more! Three years ago I was diagnosed with off the lab chart levels of platinum in my body. I have no hobby or avenue for exposure other than my work. I have sold fragrances for over ten years. Even the Regional EPA Air Quality person doesnt know where I am getting this. I was told by a health director who made some calls. He told me that platinum is used in fragrances for the "fullness of the spray". Would you please tell me more about this? Thank you!

A. Thank you Joseph83! What list of materials shall I look at? I know that the FDA doesn't regulate these products; also, I wonder if there is a masking name for platinum. I have so much of this in me, it just has to come from somewhere! I'm amazed that the EPA SUPPOSEDLY doesn't know where its coming from either.

More discussions about metal
References in periodicals archive ?
The presence of oxides as films or discrete folded particles can reduce liquid metal fluidity, resulting in casting filling issues, such as misruns or short pours.
Granted, this was a rather dramatic case--the suspected culprit was a metal rod that an operator inadvertently dropped down the machine throat.
Such low-energy transformations of metals are among the most obvious and ubiquitous examples of surface chemistry.
Gold reflects heat better than any other metal. The visor on an astronaut's helmet has an ultrathin layer of gold.
Cymru Metals operates several facilities, some of which have direct export capabilities.
Atlas Metal Sales, 1401 Umatilla St, Denver, CO, 802042432 tel: 303/623-0143 fax: 303/623-3034#
The offer from EII represents a premium of 32.7% to metal Bulletin's share price of 301.5 pence at the close of business on July 14, the last day prior to EII's original offer and is about four times Metal Bulletin's 2005 revenue of $103.7 million and 15 times the company's 2005 EBITDA of $27.5 million.
The repeated movement of the ram in the enclosed hopper of the mixer and the contacting face of the door top and body in the discharge area is where there is repeated metal to metal impact, causing the degradation of the contacting surfaces.
We immediately hit it off and found we had a lot of mutual interests in dark music such as black metal. I first heard (Malefic) Xasthur from a burned CD a SunnO))) fiend in the UK made me.
In the recent work of Morphosis--notably the Caltrans Headquarters in LA and the Federal Office Building in San Francisco (both AR July 2005)--the metal wrapper literally takes on a life of its own.
Hot rolled steel was the predominant metal window material from the 1890's into the post World War II era; during this period, metal windows became a serious competitor to wood windows.
Transition metal chelation by components of biologic fluids other than ascorbic acid may also facilitate the oxidative destruction of the latter through more indirect mechanisms, for example, those involving Fenton-like chemistry with metabolic [H.sub.2][O.sub.2] and generation of reactive oxygen and other radical species from lipid peroxides.