uniplanar
/ˌuːnaɪˈplɑːnɑr/Definitions
1. adjective
Having or relating to a single plane or level of existence or influence.
“The uniplanar structure of the skyscraper provided a solid foundation for its tall, multi-story design.”
2. noun
A plane or level of existence or influence.
“The uniplanar of the city’s economy was the central business district.”