crossing number

noun

The minimum, taken over all planar representations of a link or graph, of the number of times it crosses itself.

Meanings

nouncrossing number (plural crossing numbers)

plural crossing numbers

  1. mathematicsThe minimum, taken over all planar representations of a link or graph, of the number of times it crosses itself.
Cite this entry
APA

crossing number. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/crossing%20number

MLA

“crossing number.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/crossing%20number. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “crossing number,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/crossing%20number.

Source: crossing number on Wiktionary, CC BY-SA 4.0.