say it: puh-LIG-uh-nuhl
polygonal is an adjective meaning "having many sides or relating to a surface marked by polygons". It carries one recorded sense.
having many sides or relating to a surface marked by polygons
“polygonal structure”
Definitions, synonyms and semantic relations for polygonal come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.