x_{1} is a region/room/volume of space which is shaped like a washer (or thin or flattened torus/toroid), between inner disk/sphere x_{2} and outer disk/sphere x_{3}, defined by midplane x_{4}, and containing x_{5}.

x_{1} canlu. This word contrasts with "torxesu" in that, while neither is necessarily a material object, this is a region of space and not an idealized object per se, and that, while this region is technically three-dimensional, it is mostly considered to be flat or nearly two-dimensional (similar to "karda"). Therefore, it will not take up/fill all of the space between the inner and outer spheres; it is confined approximately to the plane x_{4}. x_{3} should enclose x_{2} (except at most one point unless the case be degenerate), but they need not be mutually concentric. x_{1} need not be perfectly circularly toroidal; for example, it could be elliptical (in which case, x_{2} or x_{3} would not be perfectly spherical either). Contrast with "bolbi'i", which is the whole region between the spheres x_{2} and x_{3} when this word makes sense, but which also does not require the nesting of the said spheres. This word is a brapagjvo; see: "jinrcaiba", "belta". Consider just using either "djine" (for an object) or "jinca'u" (for a region of space).

- bolbi'i
- x
_{1}is the whole region of space which is between inner sphere x_{2}and outer sphere x_{3}. - cmaplinykemjinrcaibyca'u
- x
_{1}is an asteroid belt, generalized Kuiper belt, or other such belt in stellar/star or planet-centered/planetary ring system x_{2}, extending over and throughout region x_{3}, including/containing objects or points of interest x_{4}, with other properties/orbital parameters x_{5}.