n. | 1. | |
| 1. | (Cookery) A thin cake made of flour and other ingredients. |
| 2. | (Eccl.) 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. |
| 3. | An adhesive disk of dried paste, made of flour, gelatin, isinglass, or the like, and coloring matter, - used in sealing letters and other documents. |
| 4. | Any thin but rigid plate of solid material, esp. of discoidal shape; - a term used commonly to refer to the thin slices of silicon used as starting material for the manufacture of integrated circuits. |
v. t. | 1. | To seal or close with a wafer. |