gregorian mode(n = noun.communication) church mode, ecclesiastical mode, medieval mode - any of a system of modes used in Gregorian chants up until 1600; derived historically from the Greek mode; Array
is a kind of mode, musical mode

a la mode, asynchronous transfer mode, church mode, ecclesiastical mode, greek mode, gregorian, gregorian calendar, gregorian calendar month, gregorian chant, gregorian telescope, major mode, medieval mode, minor mode, mixolydian mode, mode, musical mode