zinc
Americannoun
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Chemistry. a ductile, bluish-white metallic element: used in making galvanized iron, brass, and other alloys, and as an element in voltaic cells. Zn; 65.37; 30; 7.14 at 20°C.
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a piece of this metal used as an element in a voltaic cell.
verb (used with object)
noun
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a brittle bluish-white metallic element that becomes coated with a corrosion-resistant layer in moist air and occurs chiefly in sphalerite and smithsonite. It is a constituent of several alloys, esp brass and nickel-silver, and is used in die-casting, galvanizing metals, and in battery electrodes. Symbol: Zn; atomic no: 30; atomic wt: 65.39; valency: 2; relative density: 7.133; melting pt: 419.58°C; boiling pt: 907°C
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informal corrugated galvanized iron
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A shiny, bluish-white metallic element that is brittle at room temperature but is malleable when heated. It is used in alloys such as brass and bronze, as a coating for iron and steel, and in various household objects. Zinc is essential to human and animal growth. Atomic number 30; atomic weight 65.39; melting point 419.4°C; boiling point 907°C; specific gravity 7.133 (25°C); valence 2.
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See Periodic Table
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Derived Forms
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Nouns
Etymology
Origin of zinc
1635–45; < German Zink, perhaps derivative of Zinke ( n ) prong, tine, from the spikelike form it takes in a furnace
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Explanation
Zinc is a type of metal that's used to make brass. Zinc is also present in some of the food we eat, and it's important for helping our bodies fight off bad bacteria and viruses. In its basic form, zinc is a brittle, bluish-white metal. Along with copper, it's used to make the brass for light fixtures, doorknobs, and tools, among many other things. Pennies contain zinc too — since 1982, they contain 97.5% zinc and 2.5% copper. There's also zinc in our bodies, and in food including shellfish, meat, and seeds. The word zinc is believed to come from the German Zinke, "point," in reference to the spiked shape of a zinc crystal.
Vocabulary lists containing zinc
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.
In commodities, the team favors base industrial metals like aluminum, nickel, lead, and zinc, as artificial-intelligence and military buildouts increase demand while reinvestment rates by miners remain low, constricting supply.
From Barron's • May 13, 2026
“And that is before counting the zinc and lead credits that come with the ore,” it adds.
From The Wall Street Journal • Apr. 28, 2026
AFP visited the remote border zone and saw three buildings reduced to rubble, their scorched zinc roofing twisted among the debris.
From Barron's • Mar. 20, 2026
"We found cadmium, cobalt, copper, zinc, and nickel," she explained.
From BBC • Mar. 13, 2026
He was into that all-natural, fruit-based crap, because the regular kind, with zinc or aluminum or whatever in it, gives you Alzheimer’s, I forget why.
From "Burning Blue" by Paul Griffin
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
