digon

Not valid in Scrabble

It's a recognised English word, but it isn't in the official NASPA Scrabble word list.

Scrabble points
7
Words With Friends
9
Letters
5
Pronunciation
/ˈdaɪɡən/
See all 3 pronunciations
/ˈdaɪɡən/ · /ˈdaɪˌɡɒn/ · /ˈdaɪˌɡɑn/

Definition of digon

3 senses · 1 part of speech · etymology included

noun

  1. A polygon having two edges and two vertices.
    “They [the students] also came upon new and unusual mathematical figures: the digon, a two-sided polygon on a spherical space, and the apeirogon, an open polygon with infinitely many sides […]. All these discoveries brought up even more questions. Is a circle a polygon? What makes an octagon an octagon – its eight vertices, its eight sides, or both? Can a polygon cross itself? Does a polygon need to be closed?”
See all 3 definitions

noun

  1. A polygon having two edges and two vertices.
    “They [the students] also came upon new and unusual mathematical figures: the digon, a two-sided polygon on a spherical space, and the apeirogon, an open polygon with infinitely many sides […]. All these discoveries brought up even more questions. Is a circle a polygon? What makes an octagon an octagon – its eight vertices, its eight sides, or both? Can a polygon cross itself? Does a polygon need to be closed?”
  2. A pair of parallel undirected edges in a multigraph.
  3. A pair of antiparallel edges in a directed graph.

Definitions from Wiktionary, CC BY-SA.

Etymology

From di- (prefix meaning ‘two’) + -gon (suffix forming the names of plane figures containing a given number of angles).

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