corner case noun2 •A problem or situation that occurs only when two or more operating parameters are at extreme values, or when two or more unusual operating circumstances happen to coincide.Using assumptions, however, our goal is to prove correctness while finding complex corner-case bugs. — 2006 •Any unusual scenario.However, there is a corner case during which we don't want to trigger this event, and that is when the widget is being instantiated for the first time. — 2013 formscorner cases
