pentadecagon

[ pen-tuh-dek-uh-gon, -guh n ]
/ ˌpɛn təˈdɛk əˌgɒn, -gən /

noun Geometry.

a polygon having 15 angles and 15 sides.

Origin of pentadecagon

penta- + decagon

Words nearby pentadecagon

pentachloronitrobenzene, pentachlorophenol, pentacle, pentad, pentadactyl, pentadecagon, pentaerythritol, pentaerythritol tetranitrate, pentagon, pentagon papers, pentagonal dodecahedron