from The Century Dictionary.

  • Not forming an angle.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Not forming an angle.
  • adjective (Physics) an imaginary line on the earth's surface passing through those places where the magnetic needle points to the true north; the line of no magnetic variation. There is one such line in the Western hemisphere, and another in the Eastern hemisphere.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective geometry Lacking an angle.
  • adjective cartography, navigation Having a magnetic deviation of zero.


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek ἀ- (a-, "without") + γωνία (gōnia, "angle").



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