pentagon |
subpentagonal |
As a noun pentagon
is pentagon.
As an adjective subpentagonal is
(anatomy|botany) having five sides, but not forming a regular pentagon.
regular |
subpentagonal |
As adjectives the difference between regular and subpentagonal
is that
regular is while
subpentagonal is (anatomy|botany) having five sides, but not forming a regular pentagon.
As an adverb regular
is regularly.