See Also: pentagonal(dictionary)

pentagonal (iou)



pentagonal adjective. L16.
[French, or medieval Latin pentagonalis, from pentagonum: see PENTAGON, -AL1.]
Of, pertaining to, or having the form of a pentagon. L16.
Of a solid: having a pentagonal base or section. Also, contained by pentagons. L16.
pentagonally adverb in a pentagonal form M17.
pentagonoid adjective resembling a pentagon, somewhat pentagonal L19.