Definition of wafer in English:


Line breaks: wafer
Pronunciation: /ˈweɪfə


  • 1A thin, light, crisp biscuit, especially one of a kind eaten with ice cream.
    More example sentences
    • Remove the ice cream from the mould and serve with wafer biscuits or ice cream topping.
    • I do have a sweet tooth, particularly for Italian chocolate wafers and mini Cornettos.
    • Dessert is a few small sugar wafers in yet another cellophane package.
  • 2A thin piece of something: wafers of smoked salmon
    More example sentences
    • Lia gently lifted up one of the half-collapsed shelves, careful not to get her hand caught between the two splintered wafers of wood.
    • DNA chips are elegantly simple in concept: thin wafers of glass or plastic embedded with strips of DNA.
    • The samples of solar wind particles, collected on ultra-pure wafers of gold, sapphire, silicon and diamond were designed to be returned for analysis by Earth-bound scientists.
  • 2.1A thin disc of unleavened bread used in the Eucharist.
    More example sentences
    • Is it all right to chew the wafer or bread in communion or should I simply let it dissolve in my mouth as I was taught?
    • Church doctrine holds that Communion wafers, like the bread served at the Last Supper, must have at least some unleavened wheat.
    • Meantime, EBay has moved to stop the auction of a Eucharist wafer said to have been blessed by Pope John Paul II.
  • 2.2 Electronics A very thin slice of a semiconductor crystal used as the substrate for solid-state circuitry.
    More example sentences
    • Disclosed is a method for making reliable interconnect structures on a semiconductor wafer having a first dielectric layer.
    • Therefore, we can have thousands of devices on a single wafer.
    • The company's costs have risen dramatically thanks to its investment in 300 mm wafer fabs.
  • 2.3 (also wafer seal) A disc of red paper stuck on a legal document as a seal.
    More example sentences
    • A gold ribbon and wafer seal with the impression of the U.S. Department of State seal is affixed to this certificate.
  • 2.4 historical A small disc of dried paste used for fastening letters or holding papers together.


[with object] archaic Back to top  
  • Fasten or seal (a letter or document) with a wafer.
    More example sentences
    • The document was originally tied with narrow red and blue ribbons, which were attached to the signature page by a wafered impression of the seal of the United States.



More example sentences
  • I had one further mission, to investigate the famous Moroccan pastilla - a parcel of wafery pastry filled with an exotic concoction of meat, almonds, spices, sugar and eggs.
  • The bottom layer of the cake had a crispy, wafery crunch, and it was decorated with an X and O.
  • It's a thin layer of cheap chocolate wrapped around some sort of inexpensive wafery stuff with nutty, creamy stuff inside.


late Middle English: from an Anglo-Norman French variant of Old French gaufre (see goffer), from Middle Low German wāfel 'waffle'; compare with waffle2.

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