tridecagon
nounUS /tɹaɪˈdɛ.kə.ɡɑn/
Etymology From trideca- + -gon.
1
Geometry, Mathematics, Sciences A polygon having thirteen sides and thirteen angles.
- Synonyms
- 13-gon, trisdecagon, triskaidecagon
- Related terms
- pentagram (5-pointed), hexagram (6-pointed), heptagram (7-pointed), octagram (8-pointed), nonagram (9-pointed), decagram (10-pointed), hendecagram (11-pointed), dodecagram (12-pointed), tridecagram (13-pointed), tridecagonal