From Longman Dictionary of Contemporary Englishno-man's-landˈno-man’s-ˌland noun [singular, uncountable] 1 PMCONTROLan area of land that no one owns or controls, especially an area between two borders or opposing armies2 a situation or type of activity that is not either of two things or is a combination of two thingsno-man's-land between the no-man’s land between art and science
Examples from the Corpus
no-man's-land• Some of the most daring work was being done in that no-man's-land between painting and photography. 