1. (

• shellac

) lac purified by heating and filtering; usually in thin orange or yellow flakes but sometimes bleached white ;

2. (

• shellac ,
• shellac_varnish

) a thin varnish made by dissolving lac in ethanol; used to finish wood ;

1. (

• shellac ,
• shellack

) cover with shellac; "She wanted to shellac the desk to protect it from water spots" ;