acetate

A transparent sheet of plastic, often used for overlays.

"The artist drew on acetate sheets."

A synthetic fabric made from cellulose acetate fibre.

"Her dress had a silky acetate lining."

A chemical compound, a salt or ester of acetic acid.

"Lead acetate is a toxic compound."

A lacquer-coated disc record, used for masters or tests.

"The band cut an acetate of their new song."