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]

Source: The Collaborative International Dictionary of English v.0.48
 

pyramidical adj : resembling a pyramid [syn: pyramidal, pyramidic]

Source: WordNet (r) 2.0
 

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.

Source: Webster's Revised Unabridged Dictionary (1913)