Wiktionary
interarm
a. (context astronomy English) Between arms of a spiral galaxy
Usage examples of "interarm".
It being late Thursday night, he had found a parking space on Union Street, near the old Interarms warehouse, and walked back up the diamond-patterned brick sidewalks to the block where Collins lived.
Two minutes later, Malachi, now afoot, walked back up Prince to the intersection with Union Street, where he had noticed a small bistro nested up against the Interarms warehouse buildings.