fringer
Fringer is a term that can refer to several different concepts depending on the context. In some technical fields, "fringer" might be a colloquialism for an object or phenomenon that occurs at the edge or boundary of something. This could be related to the fringes of a signal in physics, where intensity drops off, or the fringe of a material in engineering.
In the realm of computing or digital imaging, "fringer" could describe artifacts that appear at the edges
The word can also have more general, non-technical meanings. It might be used informally to describe someone