The phrase "adjacent gallery" refers to a gallery or exhibition space that is located next to another gallery. It means that these galleries are side by side or next to each other. Full definition
Two refreshing solo painting shows up now in adjacent galleries have much in common, but wander down wildly different paths. (stevenzevitasgallery.com)
On view in adjacent gallery spaces are paintings by gallery artists that include Margo Selski, Rick Garland, Jackee Sandelands - Strom, Drew Ernst, Gabriel Moreno and others. (hamptonsarthub.com)
East and West converge in different ways in the work of Miya Ando and Jiha Moon, two Asia - rooted female artists who have shows in adjacent galleries at the American University Museum. (sundaramtagore.com)