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coplanar

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adjective co·pla·nar \(ˌ)kō-ˈplā-nər, -ˌnär\

Definition of coplanar

  1. :  lying or acting in the same plane

coplanarity

play \ˌkō-plā-ˈner-ə-tē, -ˈna-rə-\ noun

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First Known Use of coplanar

1853

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