[shel.lac] n [[1]shell + lac] (1713) 1: purified lac usu. prepared in thin orange or yellow flakes by heating and filtering and often bleached white
2: a preparation of lac dissolved usu. in alcohol and used chiefly as a wood filler and finish 3 a: a composition containing shellac formerly used for making phonograph records b: an old 78 rpm phonograph record
[2]shellac vt shel.lacked ; shel.lack.ing (1876) 1: to coat or otherwise treat with shellac or a shellac varnish
2: to defeat decisively