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Adelung-1793: Polygon, das
Brockhaus-1809: Das Polygon
Brockhaus-1837: Polygon
Brockhaus-1911: Polygon
Herder-1854: Polygon
Lueger-1904: Polygon [3] · Polygon [1]
Meyers-1905: Polygōn [2] · Polygōn [1]
Pierer-1857: Sphärisches Polygon · Polygōn