wafer
nounA small, thin, crisp cake, biscuit, or candy.
A small thin disk of unleavened bread used in the Eucharist.
A flat, tablet of rice paper or dried flour paste encasing a powdered drug.
A small disk of adhesive material used as a seal for papers.
A small, thin circular slice of a semiconducting material, such as pure silicon, on which an integrated circuit can be formed.
