tagapinnal
Tagapinnal is a Finnish term used in technical contexts to denote the surface of an object that is on the opposite or rear side relative to its front or active surface. The word stems from a compound idea of a back or rear surface (tagapinta) and the locative form -al, which marks location. In practice, tagapinnal describes where something is located or oriented on an object.
In usage, tagapinnal is common in engineering, manufacturing, electronics, and related fields. It can refer to
Examples of use include: “Etiketti on laitteen tagapinnalla” (The label is on the device’s back surface) and
English equivalents depend on context and can include back surface, rear surface, posterior surface, or backside.