'Pentagonal' definitions:
Definition of 'pentagonal'
From: WordNet
adjective
Of or relating to or shaped like a pentagon [syn: pentangular, pentagonal]
Definition of 'Pentagonal'
From: GCIDE
- Pentagonal \Pen*tag"o*nal\, a. [Cf. F. pentagonal, pentagone, L. pentagonus, pentagonius, Gr. ?.] Having five corners or angles. [1913 Webster]
- Pentagonal dodecahedron. See Dodecahedron, and Pyritohedron. [1913 Webster]