spatial dimension, noun <topology, geometry>
any of the independent decisions made in a coordinate system to locate a position
Note to entry: "A Euclidean space with a spatial dimension of 3, 𝔼3, usually uses axis names 'x', 'y', and 'z', Its first spatial dimension is 'x', its second is 'y' and its third is 'z'." In the context of the space, the adjective use describes the space but the singular noun can use a name for an axis separately.
ORIGIN: ISO/TC 211 Glossary of Terms - English (last updated: 2020-06-02)