Definitions

1. noun

a resinous substance obtained from the lac bug, used as a varnish or coating for wood, leather, and other surfaces

“The antique furniture had a rich, dark shellac finish.”

2. verb

to apply a shellac coating to

“The craftsman shellacked the table to protect it from moisture.”

3. verb

to make or become dull or lackluster

“The excitement of the party soon began to shellack as the night wore on.”