Pycnostyle

pycnostyle
Architectural term given by Vitruvius to the intercolumniation between the columns of a temple, when this was equal to 11/2 diameters.
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Intercolumniation - The space between columns measured in diameters. Vitruvius established five main ratios, 1½ D Pycnostyle, 2 D Systyle, 2½ D Eustyle, 3 D Diastyle, 4 D Araeostyle.

See also: Soffit, Screen, Door, Floor, Intercolumniation