shifting

Noun

 * 1) A shift or change; a shifting movement.
 * 2)  The phenomenon by which two or more constituents appearing on the same side of their common head exchange positions to obtain non-canonical order.
 * 1)  The phenomenon by which two or more constituents appearing on the same side of their common head exchange positions to obtain non-canonical order.
 * 1)  The phenomenon by which two or more constituents appearing on the same side of their common head exchange positions to obtain non-canonical order.
 * 1)  The phenomenon by which two or more constituents appearing on the same side of their common head exchange positions to obtain non-canonical order.