In physics, a dimension that is considered to be independent of time is typically referred to as a "spatial dimension." Spatial dimensions are the dimensions that describe the physical extent and position of objects in space. In our everyday experience, we are familiar with three spatial dimensions: length, width, and height.
However, in certain physical theories, such as string theory or some cosmological models, there are proposals that suggest the existence of additional spatial dimensions beyond the three we observe directly. These additional spatial dimensions, if they exist, are typically hypothesized to be "compactified" or "curled up" at incredibly tiny scales, making them undetectable by our current experimental capabilities.
It's important to note that the concept of dimensions, whether spatial or temporal, can be highly theoretical and abstract. The specific nature and properties of dimensions are the subject of ongoing research and investigation in the field of physics. Theoretical physicists use mathematical frameworks to explore and understand the potential existence and implications of dimensions beyond our everyday experience.