This is the 15922nd most frequent Russian word.
пространственного
"Spatial" or "related to space."
In this sentence, 'пространственную' (spatial) describes the type of geometry being studied, referring to properties related to three-dimensional space.
Он изучает пространственную геометрию.
He studies spatial geometry.
Here, 'пространственное' (spatial) is used to describe a type of thinking essential for professions dealing with space and spatial arrangements.
Пространственное мышление важно для архитекторов.
Spatial thinking is important for architects.
The word 'пространственного' (spatial) in this context is employed to describe the perception of the three-dimensional qualities depicted within the painting.