Definitions

from The Century Dictionary.

  • noun In mathematics, a double point belonging to a curve, but separated from other real points of the curve.

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

  • noun (Geom.) An isolated point not upon a curve, but whose coördinates satisfy the equation of the curve so that it is considered as belonging to the curve.

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

  • noun geometry An isolated point not upon a curve, but whose coordinates satisfy the equation of the curve so that it is considered as belonging to the curve.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Latin acus + nodus

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Examples

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