gum lac
/ˈɡʌmˌlæk/
noun
- A resinous substance produced by certain insects, used in making varnishes, sealing wax, and shellac.
- The artisan used gum-lac to create a glossy finish on the wooden jewelry box.
- The sticky gum-lac is harvested from tree branches where insects have deposited it.
- Historically, gum-lac was an important ingredient in high-quality printing inks.