As nouns the difference between colonnade and intercolumnation
is that colonnade is a series of columns at regular intervals while intercolumnation is the regular spaces (or system of spacing) between the columns of a colonnade.
colonnade
English
Noun
(
en noun)
A series of columns at regular intervals.
peristyle
portico, stoa
intercolumnation
English
Noun
(
en noun)
(architecture) The regular spaces (or system of spacing) between the columns of a colonnade
See also
*pycnostyle
*systyle
*eustyle
*diastyle
*areostyle