wafer

1 of 2

noun

wa·​fer ˈwā-fər How to pronounce wafer (audio)
plural wafers
1
a
: 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
3
a
: 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
wafer-like adjective
or less commonly waferlike
wafer-like cookies
a wafer-like electronic sensor

wafer

2 of 2

verb

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

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Behind me, for example, is a 12-inch diamond wafer – the same size as silicon wafers. New Atlas, 30 Nov. 2024 The Southern dessert Usher mentioned knowing how to whip up for his family — traditionally made using banana slices, pudding and vanilla wafers — has long made an appearance on American dinner tables. Janine Rubenstein, People.com, 27 Nov. 2024
Verb
This is often called polycrystalline silicon, in contrast to the monocrystalline (single crystals) wafers that semiconductors are made on. Willy Shih, Forbes, 13 Oct. 2024 But a traditional creamy trifle will feature layers of bananas, a vanilla pudding or custard, Nilla wafers (daring heretics might use sponge cake) and then whipped cream or even a meringue. Cnn.com Wire Service, The Mercury News, 26 Sep. 2024 See all Example Sentences for wafer 

Word History

Etymology

Noun

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

First Known Use

Noun

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

Verb

1748, in the meaning defined at sense 1

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

Dictionary Entries Near wafer

Cite this Entry

“Wafer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wafer. Accessed 16 Dec. 2024.

Kids Definition

wafer

noun
wa·​fer
ˈwā-fər
1
a
: a thin crisp cake or cracker
b
: a round thin piece of bread used in the sacrament of Communion
2
: something (as a piece of candy or a computer chip) resembling a wafer especially in thin round form

Medical Definition

wafer

noun
wa·​fer ˈwā-fər How to pronounce wafer (audio)
: cachet

More from Merriam-Webster on wafer

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