Wafer

Noun

  • (religion) A thin disk of consecrated unleavened bread used in communion.
  • A light, thin, flat biscuit/cookie.
  • (electronics) A thin disk of silicon or other semiconductor on which an electronic circuit is produced.
  • A soft disk originally made of flour, and later of gelatin or a similar substance, used to seal letters, attach papers etc.

Verb

  • (transitive) To seal or close with a wafer.

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