Entry 1 sense Webster, 1913 Biting in /bīt'-ĭng ĭn/ · Bit·ing in · IPA 01 The process of corroding or eating into metallic plates, by means of an acid. See Etch. 1. The process of corroding or eating into metallic plates, by means of an acid. See Etch.(Etching.) See: Etch