wa·​fer | \ ˈwā-fər How to pronounce wafer (audio) \

Definition of wafer

 (Entry 1 of 2)

1a : a thin crisp cake, candy, or cracker
b : a round thin piece of unleavened bread used in the celebration of the Eucharist
2 : an adhesive disk of dried paste with added coloring matter used as a seal
3a : a thin disk or ring resembling a wafer and variously used (as for a valve or diaphragm)
b : a thin slice of semiconductor (such as silicon) used as a base for an electronic component or circuit


wafered; wafering\ ˈwā-​f(ə-​)riŋ How to pronounce wafering (audio) \

Definition of wafer (Entry 2 of 2)

transitive verb

1 : to seal, close, or fasten with a wafer
2 : to divide (something, such as a silicon rod) into wafers

Examples of wafer in a Sentence

Recent Examples on the Web: Noun But faced with growing trade tensions and U.S. tariffs, the leaders of those companies -- which typically operate on wafer-thin margins -- are reconsidering their commitment to China. Fortune, "Will iPhone 11 Sales Boom This Holiday Season? New Data From Apple’s Biggest Manufacturer Provides a Clue," 13 Nov. 2019 And among it all, lay my souvenir: a wafer-thin, slightly tattered, 3D photo book of Istanbul from the 1950s, depicting some of the city’s most famous tourist sites. Lale Arikoglu, Condé Nast Traveler, "The Magic of Letting a Souvenir Find You," 10 Sep. 2019 Lehman took huge but carefully hidden risks and stretched its collateral wafer-thin. Adam Tooze, The New York Review of Books, "How ‘Big Law’ Makes Big Money," 28 Jan. 2020 Mirrors made by Zeiss, a German company, focus that light onto the waiting silicon wafer. The Economist, "A look inside the factory around which the modern world turns," 18 Dec. 2019 Lithography is the process by which circuit patterns are etched onto silicon wafers. Alex Webb | Bloomberg, Washington Post, "Why Might China Want to Steal These Silicon Secrets?," 15 Apr. 2019 These thin rectangles of crispy molasses wafers with a honeycomb-esque bite are his top choice. Janelle Bitker, SFChronicle.com, "A celebration of See’s Candies," 14 Dec. 2019 At the time, TSMC Chief Financial Officer Lora Ho told me that stockpiles consisted primarily of raw wafers and 7-nanometer chips in production. Tim Culpan | Bloomberg, Washington Post, "Apple’s Major Supplier Takes One for the Team," 2 Apr. 2019 And then there was the Nilla wafer crust that was the bee’s knees. Nancy Ngo, Twin Cities, "St. Paul’s new Hot Hands Pie & Biscuits is hot right now, as it should be," 10 Dec. 2019 Recent Examples on the Web: Verb Historic wafering iron designs indicate that, like today, the irons could be given as wedding gifts. Kat Eschner, Smithsonian, "These Beautiful Medieval Wafer Presses Are Where Waffles Come From," 29 June 2017 Historic wafering iron designs indicate that, like today, the irons could be given as wedding gifts. Kat Eschner, Smithsonian, "These Beautiful Medieval Wafer Presses Are Where Waffles Come From," 29 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'wafer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of wafer


14th century, in the meaning defined at sense 1a


1748, in the meaning defined at sense 1

History and Etymology for wafer


Middle English, from Anglo-French wafer, walfre, of Germanic origin; akin to Middle Dutch wafele waffle

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Time Traveler for wafer

Time Traveler

The first known use of wafer was in the 14th century

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Last Updated

15 Feb 2020

Cite this Entry

“Wafer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wafer. Accessed 24 Feb. 2020.

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More Definitions for wafer


How to pronounce wafer (audio)

English Language Learners Definition of wafer

: a thin, crisp cracker
: a round, thin piece of bread eaten during the Christian Communion ceremony
: a small, round, thin object


wa·​fer | \ ˈwā-fər How to pronounce wafer (audio) \

Kids Definition of wafer

: a thin crisp cake or cracker


wa·​fer | \ ˈwā-fər How to pronounce wafer (audio) \

Medical Definition of wafer

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More from Merriam-Webster on wafer

Rhyming Dictionary: Words that rhyme with wafer

Spanish Central: Translation of wafer

Nglish: Translation of wafer for Spanish Speakers

Britannica English: Translation of wafer for Arabic Speakers

Britannica.com: Encyclopedia article about wafer

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