- Chemistry. a ductile, bluish-white metallic element: used in making galvanized iron, brass, and other alloys, and as an element in voltaic cells. Symbol: Zn; atomic weight: 65.37; atomic number: 30; specific gravity: 7.14 at 20°C.
- a piece of this metal used as an element in a voltaic cell.
- to coat or cover with zinc.
Origin of zinc
Examples from the Web for zinc
The more than 50,000 who reside in West Point live mostly in shacks made of zinc with rusted tin roofs.Meet the Liberian Girls Beating Ebola
October 29, 2014
But the coolest part may have been what was placed inside a zinc case in the cornerstone.Weird Washington Monument History
May 12, 2014
And many are packed with nutrients like zinc, iron, and calcium.Forget the Starbucks Backlash—We Should Be Eating More Bugs
April 24, 2012
“What we made was zinc and aluminum die castings,” he told me last Friday in Lima, Ohio.Rick Santorum’s Blue-Collar Fumble
March 7, 2012
Plus, the beef delivers an extra dose of zinc, which protects against weakening of the immune system.10 Power Food Combos
March 18, 2010
The roof of the great porch of the kitchen-door was covered with zinc.The Dream
The letters were then transferred to the zinc by pressure, so as to be printed from.Heroes of the Telegraph
It so happened that on that day he was to fix the last sheets of zinc.
Then Gervaise understood that he fancied he was on a roof, laying down sheets of zinc.
Bending over his bench, he was now artistically cutting out his zinc.
- 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
- informal corrugated galvanized iron
Word Origin and History for zinc
1650s, from German Zink, perhaps related to Zinke "prong, point;" said to have been used first by Paracelsus (c.1526) on analogy of the form of its crystals after smelting. Zinke is from Old High German zint "a point, jag," from Proto-Germanic *tindja "tine" (cf. Old Norse tindr "point, top, summit," Old English tind "prong, spike;" cf. tine).
- A metallic element that is brittle at room temperature but becomes malleable when heated and is used in various pharmaceuticals, including astringents and antiseptics. Atomic number 30.
- 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. See Periodic Table.