Wiktionary
patress
alt. an adapting plate or mounting used to fix an object to a surface or a substrate where the difference in character between the object and that to which it is mounted prevents direct mounting, eg in fitting a flat panel to a curved surface n. an adapting plate or mounting used to fix an object to a surface or a substrate where the difference in character between the object and that to which it is mounted prevents direct mounting, eg in fitting a flat panel to a curved surface