[wa.fer] n [ME, fr. ONF waufre, of Gmc origin; akin to MD wafel, wafer waffle] (14c) 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
[2]wafer vt wa.fered ; wa.fer.ing (1748) 1: to seal, close, or fasten with a wafer
2: to divide (as a silicon rod) into wafers