Pronunciations (2)
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/kəʊˈpleɪnə(ɹ)/
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kəʊˈpleɪnə(ɹ)
Adjective
Within the same plane.
Usage- not-comparable
- of at least two things
Orbiting a central celestial object within the same orbital plane.
Usage- not-comparable
- of multiple planets or other orbiting bodies
- Examples
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Gliese 876’s third, innermost planet . . . is likely to be coplanar with its outer two companions.
Adjective
lying in the same plane