routiner noun2 •A jazz musician who plays by ear (i.e. not using sheet music, but rather following along with the band and memorizing music when needed).Tom Albert, present during this interview, stated that Vincent was at first a routiner (i.e., playing by rote or ear) [...] — 2005 •A device used to automatically activate and cycle the settings of electronic equipment for testing purposes.In preparing for the test, it is only necessary to connect the routiner to a test distributor by operating a key. — 1955 formsroutiners