'Polygonal' definitions:

Definition of 'polygonal'

From: WordNet
adjective
Having many sides or relating to a surface marked by polygons; "polygonal structure"

Definition of 'Polygonal'

From: GCIDE
  • Polygonal \Po*lyg"o*nal\, a. Having many angles. [1913 Webster]
  • Polygonal numbers, certain figurate numbers. See under Figurate. [1913 Webster]