'Pyramidical' definitions:

Definition of 'pyramidical'

From: WordNet
adjective
Resembling a pyramid [syn: pyramidal, pyramidic, pyramidical]

Definition of 'Pyramidical'

From: GCIDE
  • Pyramidic \Pyr`a*mid"ic\, Pyramidical \Pyr`a*mid"ic*al\, a. Of or pertaining to a pyramid; having the form of a pyramid; pyramidal. " A pyramidical rock." --Goldsmith. "Gold in pyramidic plenty piled." --Shenstone. -- {Pyr`a*mid"ic*al*ly}, adv. {Pyr`a*mild"ic*al*ness}, n. [1913 Webster]