: a bluish-white metallic element with atomic number 30 that is ductile when pure but in the commercial form is brittle at ordinary temperatures and becomes ductile on slight heating, occurs abundantly in minerals, is an essential micronutrient for both plants and animals, and is used especially in alloys and as a protective coating in galvanizing iron and steel
—often used before another noun
a zinc coating
zinc additives
see Chemical Elements Table

zinc

2 of 2

verb

transitive verb

: to treat or coat with zinc : galvanize

Examples of zinc in a Sentence

Recent Examples on the Web
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Noun
Saltair’s refill pods lean on BHAs and zinc ricinoleate to tackle odor while smoothing skin — a skincare-crossover pitch that reframes deodorant as part of a beauty routine rather than a utilitarian purchase. — Lauren Jarvis-Gibson, Fort Worth Star-Telegram, 21 Sep. 2026 Ridges can form due to common deficiencies (like zinc or iron), or due to natural aging. — Maggie Ryan, Flow Space, 18 Sep. 2026 The United States also depends on Canada for critical minerals, such as zinc, tellurium and nickel. — Tom Zirpoli, Baltimore Sun, 15 Sep. 2026 Beef also provides high-quality protein as well as vitamins and minerals like B12, zinc, and selenium. — Jillian Kubala, HEALTH, 15 Sep. 2026 See All Example Sentences for zinc

Word History

Etymology

Noun

German Zink

First Known Use

Noun

1651, in the meaning defined above

Verb

1841, in the meaning defined above

Time Traveler
The first known use of zinc was in 1651

Browse Nearby Words

Cite this Entry

“Zinc.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/zinc. Accessed 24 Sep. 2026.

Kids Definition

zinc

noun
ˈziŋk
: a bluish white metallic element that is commonly found in minerals and is used especially in alloys and as a protective coating for iron and steel see element

Medical Definition

: a bluish-white metallic chemical element with atomic number 30 that is an essential micronutrient for both plants and animals
—symbol Zn
see Chemical Elements Table

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