What is "pyramidically"

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.

adv. in a pyramidal manner or shape; "the bush was trimmed pyramidically"