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  • metal
    metal
    noun
    any of a class of elementary substances, as gold, silver, or copper, all of which are crystalline when solid and many of which are characterized by opacity, ductility, conductivity, and a unique luster when freshly fractured.
  • metal.
    metal.
    abbreviation
    metallurgical.
Synonyms

metal

1 American  
[met-l] / ˈmɛt l /

noun

  • metals
    plural
  1. any of a class of elementary substances, as gold, silver, or copper, all of which are crystalline when solid and many of which are characterized by opacity, ductility, conductivity, and a unique luster when freshly fractured.

  2. Chemistry.

    1. such a substance in its pure state, as distinguished from alloys.

    2. an element yielding positively charged ions in aqueous solutions of its salts.

  3. an alloy or mixture composed wholly or partly of such substances, as brass.

  4. an object made of metal.

  5. formative material; stuff.

  6. mettle.

  7. Printing.

    1. type metal.

    2. the state of being set in type.

  8. molten glass in the pot or melting tank.

  9. British. road metal.


verb (used with object)

  • metals,
    present (3rd person singular)
  • metaled,
    past participle,  past
  • metalled,
    past participle,  past (especially British)
  • metaling,
    present participle
  • metalling
    present participle (especially British)
  1. to furnish or cover with metal.

  2. British. to pave or surface (a road) with broken stone.

metal. 2 American  

abbreviation

  1. metallurgical.

  2. metallurgy.


metal. 1 British  

abbreviation

  1. metallurgical

  2. metallurgy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

metal 2 British  
/ ˈmɛtəl /

noun

    1. 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

    2. an alloy, such as brass or steel, containing one or more of these elements

  1. printing type made of metal

  2. the substance of glass in a molten state or as the finished product

  3. short for road metal

  4. informal short for heavy metal

  5. navy

    1. the total weight of projectiles that can be shot by a ship's guns at any one time

    2. the total weight or number of a ship's guns

  6. Also called: heavy elementastronomy any element heavier than helium

  7. heraldry gold or silver

  8. (plural) the rails of a railway

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. made of metal

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to fit or cover with metal

  2. to make or mend (a road) with road metal

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
metal Scientific  
/ mĕtl /
  1. Any of a large group of chemical elements, including iron, gold, copper, lead, and magnesium, that readily become cations and form ionic bonds, having relatively free valence electrons (electrons in the outer shells). Metals are generally good conductors of electricity because of the freedom of their valence electrons. Metals generally conduct heat well, and in solid form are relatively malleable and ductile compared to other solids. They are usually shiny and opaque. All metals except mercury are solid at room temperature.

  2. An alloy, such as steel or bronze, made of two or more metals.

  3. In astronomy, any atom except hydrogen and helium.

  4. Small stones or gravel, mixed with tar to form tarmac for the surfacing of roads.


Usage

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.

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of metal

1250–1300; Middle English (< Old French ) < Latin metallum quarry, metal < Greek métallon mine, quarry, metal

Explanation

Metal is a shiny, hard, solid material, such as iron or aluminum. If, when you smile, you flash a brilliant metal grin, it's probably because of your braces. The Greek root metallon originally meant quarry or mine, and later came to also mean metal. Silver jewelry is made of metal, and so are things like car engines and tin cans. The genre of rock music popularly known as metal gets its name from the heavy sound, especially of the guitar solo, played on electric guitars — made of metal.

Keep Reading on Vocabulary.com

Vocabulary lists containing metal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Gold benefited from the ensuing weakness in the U.S. dollar, with the yellow metal breaking above its 200-day moving average, Truist Wealth CIO Keith Lerner told MarketWatch in an interview Friday.

From MarketWatch Aug. 22, 2026

An AFP reporter saw machinery piling up twisted and charred metal.

From Barron's Aug. 22, 2026

The precious metal is likely to continue reacting to changing monetary policy expectations, says Critical Metals’ Tony Sage in an email.

From The Wall Street Journal Aug. 21, 2026

Nine state-owned mining, metal and building firms, the Ministry of Construction and officials connected to a Cuban-based international institute have been named in the latest tranche of economic sanctions.

From BBC Aug. 21, 2026

He plops himself into the folding metal lawn chair next to it while Zara and I perch on Gertrude, which is our name for the ugly couch — or as Pops called it, a chesterfield.

From "Red Flags and Butterflies" by Sheryl Azzam

"This is the first paper showing these non-equilibrium states that are retained in the metal. Right now, this chemical order is not something we're controlling for or paying attention to when we manufacture metals."

From Science Daily Oct. 14, 2025

“How blessed am I to do it with the help of people whom I love. Birmingham is the true home of metal. Birmingham Forever.”

From Los Angeles Times Feb. 5, 2025

"I had a really high level of heavy metal. Heavy metal. I had the lead, very high level of lead and mercury."

From BBC Jan. 10, 2025

Because he’s skinny, “the only way they could make him strong enough was to print the puppet in metal. He’s a strong little guy, quite difficult to break. The animators loved animating him.”

From New York Times Jan. 3, 2023

“Couldn’t be a diamond that big. Looks like metal. Do you think we’ve bored into a buried locomotive?”

From "East of Eden" by John Steinbeck

In the Appalachian region stretching through the US state of West Virginia, the reddish water flowing out of retired coal mines is acidic, full of heavy metals and toxic for the environment.

From Barron's Aug. 22, 2026

The moves were a bit hard to square with rising bond yields, which makes holding precious metals a tough sell compared to just plonking the money in a savings account.

From The Wall Street Journal Aug. 21, 2026

Deadly accidents are not uncommon in Colombia, especially at unlicensed mines where locals dig for precious metals without any official oversight.

From BBC Aug. 20, 2026

Gold settled up 0.4% Friday, and silver rose 0.2%, with both metals also posting gains for the week.

From The Wall Street Journal Aug. 16, 2026

Though much of its lands were sand and high desert, its mines had yielded more precious metals and gemstones than any other in Kelanna.

From "The Reader" by Traci Chee

Coutu/Los Angeles and Jeanne Saddler/Washington, with other U.S. bureaus Frozen in bronze, the black infantrymen trudge forever forward, their rifles scraping the metaled sky.

From Time Magazine Archive

The hard soles of his shoes rapped loudly on the metaled road like a giant clock, and he made himself think about time, about his great hoard, the luxury of an unspent fortune.

From "Atonement" by Ian McEwan

It was bounded by a low wooden fence, which screened it off from a broad, modern, new metaled road.

From Beyond the City by Sir Arthur Conan Doyle

The road that came out of the pines, formerly deeply rutted and sandy, was now metaled and approached the house in a graded curve.

From The Tyranny of Weakness by Paul Stahr

The metaled turnpikes would dwindle and end in clay roads.

From The Code of the Mountains by Charles Neville Buck

The Captain's Road, which links two droving inns, Tibbie Shiel's and Tushielaw, was one of the earliest metalled roads connecting the Ettrick and Yarrow valleys.

From BBC Jun. 2, 2022

Today we talk about capital cities and forums, as well as structures such as amphitheatres, basilicas, metalled roads, pavements and multi-storey apartment blocks because of the idea of the city that Rome bequeathed us.

From The Guardian Mar. 15, 2016

Down in the depths of the holloway, you could see neither metalled roads nor telegraph poles, nor even the most distant glimpses of the outsized golf balls of the early warning radar up on Fylingdales.

From The Guardian Jul. 19, 2013

In the backwater districts which Henry administered, servants took the place of the "water supply, sanitation, metalled roads, mechanical transport and shops of Western communities."

From Time Magazine Archive

It is now connected with Bunji by a metalled road.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" by Various

The hand he had been holding behind him came to the front, clutching a stone snatched up from the metaling of the pike as he ran.

From The Quickening by E. M. Ashe

There was a purring of wheels in the air and the staccato clatter of a horse's hoofs on the hard metaling of the pike.

From The Quickening by E. M. Ashe

Nails, felt and labour metalling are subject to a deduction of one-third.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" by Various

We whipped through St. Jean de Luz, sang through Bidart, and hobbled over a fearful stretch of metalling into Bayonne….

From Jonah and Co. by Dornford Yates

A few inches more metalling, perhaps, another generation of menders, and so on.

From Aliens by William McFee

It is the best ground of all, especially where the yellow or brown sands are overlaid by hard gravel, or by a natural metalling of trap and other stones.

From The Land of Midian — Volume 2 by Sir Richard Francis Burton

Roads.—The alignment of good roads in the plains of the Panjáb is easy, and the deposits of calcareous nodules or kankar often found near the surface furnish good metalling material.

From The Panjab, North-West Frontier Province, and Kashmir by Sir James McCrone Douie

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