coplanar

adjective

co·pla·nar | \ (ˌ)kō-ˈplā-nər ,

-ˌnär \

Definition of coplanar

: lying or acting in the same plane

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In their study, Müller and his team argue that if coplanar alignments of dwarf galaxies are widespread, this would pose a worthy challenge to the LCDM model—which predicts a random distribution of dwarfs. — Shannon Stirone, Scientific American, "Dancing Dwarf Galaxies Deepen Dark Matter Mystery," 1 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coplanar.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Time Traveler for coplanar

The first known use of coplanar was in 1853

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biannual

occurring twice a year or every two years

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