Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A line that is tangent to a curve at two points

from the GNU version of the Collaborative International Dictionary of English

  • adj. Possessing the property of touching at two points.

from The Century Dictionary and Cyclopedia

  • n. In mathematics, a double tangent; a straight line which touches a given curve at two points.

Etymologies

bi- +‎ tangent (Wiktionary)

Examples

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