swirling
n.— «Part of what makes data collection difficult on these measures is that so many students attend more than one institution during their careers, often going back and forth, a process some call “swirling,” different from the linear path assumed.» —“The Missing Link: The Role of Community Colleges in the Transitions between High School and College” by Andrea Conklin Bueschel Bridge Project (Stanford University, California) Feb., 2003. (source: Double-Tongued Dictionary)