quindecagon

[ kwin-dek-uh-gon, -guh n ]
/ kwɪnˈdɛk əˌgɒn, -gən /

noun Geometry.

a polygon having 15 angles and 15 sides.

Origin of quindecagon

1560–70; < Latin quīndec(im) fifteen + -agon (extracted from pentagon, hexagon, etc.)

British Dictionary definitions for quindecagon

quindecagon
/ (kwɪnˈdɛkəɡən) /

noun

a geometric figure having 15 sides and 15 angles

Word Origin for quindecagon

C16: from Latin quindecim fifteen + -agon, as in decagon