wafer
• noun 1 a very thin light, crisp sweet biscuit. 2 a thin disc of unleavened bread used in the Eucharist. 3 a disc of red paper stuck on a legal document as a seal. 4 Electronics a very thin slice of a semiconductor crystal used in solid-state circuitry. — ORIGIN Old French gaufre ‘honeycomb’; related to WAFFLE2.
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