thrackle
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English[edit]
Etymology[edit]
Scots term for a fouled fishing line, which Conway heard when visiting Scotland.
Noun[edit]
thrackle (plural thrackles)
- (graph theory) An embedding of a graph in the plane, such that each edge is a Jordan arc and every pair of edges meet once.
- 2016, Grace Misereh, Yuri Nikolayevsky, “Thrackles containing a standard musquash”, in arXiv[1]:
- We prove that a thrackle drawing containing a standard musquash (standard n-gonal thrackle) cannot contain any other cycle of length three or five.