n.
Pronunciation: ' w ā -f ə r
Function: noun
Etymology: Middle English, from Anglo-French wafer, walfre, of Germanic origin; akin to Middle Dutch wafele waffle
Date: 14th century
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 (as silicon) used as a base for an electronic component or circuit