1

wafer

play
noun wa·fer \ˈwā-fər\

Definition of wafer

  1. 1a :  a thin crisp cake, candy, or crackerb :  a round thin piece of unleavened bread used in the celebration of the Eucharist

  2. 2 :  an adhesive disk of dried paste with added coloring matter used as a seal

  3. 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

Recent Examples of wafer from the Web

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.

Origin and Etymology of wafer

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


2

wafer

verb wa·fer

Definition of wafer

wafered

;

wafering

play \ˈwā-f(ə-)riŋ\
  1. transitive verb
  2. 1 :  to seal, close, or fasten with a wafer

  3. 2 :  to divide (something, such as a silicon rod) into wafers

First Known Use of wafer

1748


WAFER Defined for English Language Learners

wafer

play
noun

Definition of wafer for English Language Learners

  • : a thin, crisp cracker

  • : a round, thin piece of bread eaten during the Christian Communion ceremony

  • : a small, round, thin object


WAFER Defined for Kids

wafer

play
noun wa·fer \ˈwā-fər\

Definition of wafer for Students

  1. :  a thin crisp cake or cracker


Medical Dictionary

wafer

play
noun wa·fer \ˈwā-fər\

Medical Definition of wafer

  1. :  cachet



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