Wafer n. : A thin cake made of flour and other ingredients.

Wafer n. : A thin cake or piece of bread (commonly unleavened, circular, and stamped with a crucifix or with the sacred monogram) used in the Eucharist, as in the Roman Catholic Church.

Wafer n. : An adhesive disk of dried paste, made of flour, gelatin, isinglass, or the like, and coloring matter, -- used in sealing letters and other documents.

Wafer v. t. : To seal or close with a wafer.

Example:
What is the power draw of a functioning Wafer fab?

Taxonomy
wafer, silicon wafer, Thickness, silicon, wafer sizes, orientation, solar wafer, inch wafers, 2008-02-23, solar cells, flats, thin wafers, free encyclopedia, fabs, etching, factories, wafer diameter, notch.

Defination from the web:
wafer is a thin slice of semiconductor material, such as a silicon crystal, used in the fabrication of integrated circuit and other microdevices. ... This is the basis of shifting to larger and larger wafer sizes. ...