- such a substance in its pure state, as distinguished from alloys.
- an element yielding positively charged ions in aqueous solutions of its salts.
verb (used with object), met·aled, met·al·ing or (especially British) met·alled, met·al·ling.
- metaherpetic keratitis,
- metal detector,
- metal fume fever,
- metal lath,
- metal lumber,
- metal oxide semiconductor
Origin of metal
Examples from the Web for metal
The taste of metal cutlery after years of plastic can also taste funny.His First Day Out Of Jail After 40 Years: Adjusting To Life Outside|Justin Rohrlich|January 3, 2015|DAILY BEAST
More fireworks followed the first, and the metal barriers rattled.
Today the church is wrapped in scaffolding and metal ribbons are holding its façade in place until someone pays to repair it.Madonna, Carla Bruni & Obama Abandoned Pledges To Rebuild L'Aquila After The Quake|Barbie Latza Nadeau|November 18, 2014|DAILY BEAST
The cuts had been by accident by falling on a metal object after which he then washed the wound with the available water.
Some were blatantly inferior, he said, at times with metal shavings and burrs in the threads.
The lens is surrounded by a metal case or lantern, in which is placed the electric lamp upon a slide for focussing.Torpedoes and Torpedo Warfare|C. W. Sleeman
A dollar is 254⁄5 grains of a metal compound coined, of which nine parts are pure gold and one part a hardening alloy.Principles of Political Economy|Arthur Latham Perry
But meteor detectors are built to look for solid chunks of metal and rock—not thin, porous bits of cloth.Hanging by a Thread|Gordon Randall Garrett
The front of the metal case, very light compared with the top, fell with a clang.The Buttoned Sky|Geoff St. Reynard
"This is our often abused but ever available 'cash,'" said Mr. Reid, holding up one of the crude bits of metal for Mallard to see.The Red Miriok|Anna M. Barnes
- any of a number of chemical elements, such as iron or copper, that are often lustrous ductile solids, have basic oxides, form positive ions, and are good conductors of heat and electricity
- an alloy, such as brass or steel, containing one or more of these elements
- the total weight of projectiles that can be shot by a ship's guns at any one time
- the total weight or number of a ship's guns
verb -als, -alling or -alled or US -als, -aling or -aled (tr)
Word Origin for metal
mid-13c., from Old French metal "metal; material, substance, stuff" (12c.), from Latin metallum "metal; mine, quarry, mineral, what is got by mining," from Greek metallon "metal, ore" (senses only in post-classical texts; originally "mine, quarry, pit"), probably from metalleuein "to mine, to quarry," of unknown origin, but related somehow to metallan "to seek after." Cf. Greek metalleutes "a miner," metalleia "a searching for metals, mining."
late 14c., from metal (n.).
Most metallic elements are lustrous or colorful solids that are good conductors of heat and electricity, and readily form ionic bonds with other elements. Many of their properties are due to the fact that their outermost electrons, called valence electrons, are not tightly bound to the nucleus. For instance, most metals form ionic bonds easily because they readily give up valence electrons to other atoms, thereby becoming positive ions (cations). The electrical conductivity of metals also stems from the relative freedom of valence electrons. In a substance composed of metals, the atoms are in a virtual sea of valence electrons that readily jump from atom to atom in the presence of an electric potential, creating electric current. With the exception of hydrogen, which behaves like a metal only at very high pressures, the elements that appear in the left-hand column of the Periodic Table are called alkali metals. Alkali metals, such as sodium and potassium, have only one electron in their outermost shell, and are chemically very reactive. (Hydrogen is exceptional in that, although it is highly reactive, its other metallic properties are manifest only at very high pressures.) Metals farther toward the right side of the Periodic Table, such as tin and lead, have more electrons in their outermost shell, and are not as reactive. The somewhat reactive elements that fall between the two extremes are the transition elements, such as iron, copper, tungsten, and silver. In most atoms, inner electron shells must be maximally occupied by electrons before an outer shell will accept electrons, but many transition elements have electron gaps in the shell just inside the valence shell. This configuration leads to a wide variety of available energy levels for electrons to move about in, so in the presence of electromagnetic radiation such as light, a variety of frequencies are readily emitted or absorbed. Thus transition metals tend to be very colorful, and each contributes different colors to different compounds.