Coplanar

//kəʊˈpleɪnə(ɹ)// adj

Definitions

Adjective
  1. 1
    Within the same plane. not-comparable
  2. 2
    Orbiting a central celestial object within the same orbital plane. not-comparable

    "Gliese 876’s third, innermost planet . . . is likely to be coplanar with its outer two companions."

Adjective
  1. 1
    lying in the same plane wordnet

Etymology

From co- + planar.

Next best steps

Mini challenge

Unscramble this word: coplanar