semiconcentric

semiconcentric describes a geometric configuration where two or more shapes share a common center point or axis, but do not necessarily share the same radius or boundary. In essence, they are "half" or "partially" concentric. This means that while their centers align, their extents differ.

For example, two circles can be semiconcentric if they share the same center but have different radii. One circle is contained within the other. In three dimensions, this concept can apply to spheres or other shapes. Imagine a smaller sphere nested inside a larger sphere, with both spheres sharing the exact same central point.

The term is often used in technical fields such as engineering, physics, and mathematics to describe arrangements where alignment of a central point is critical, but the overall dimensions or extents of the objects involved are distinct. This allows for precise positioning and analysis of systems where overlapping but not identical regions are important. The key characteristic of a semiconcentric arrangement is the shared central reference, facilitating discussions about relative positioning and spatial relationships.