The Collaborative International Dictionary
Interaxis
Interaxis \In`ter*ax"is\, n.; pl. Interaxes. (Arch.) The space between two axes. See Axis, 6.
The doors, windows, niches, and the like, are then
placed centrally in the interaxes.
--Gwilt.
Wiktionary
interaxis
n. (context architecture English) The space between two axis.