drift

In physics, "drift" refers to the average velocity of charged particles, such as electrons, as they move through a solid material under the influence of an electric field. This movement is a result of the particles being pulled by the electric field while simultaneously colliding with the atoms of the material. The faster these particles move at a given electric field strength, the higher their mobility.1

"Drift" can also describe the lateral motion of an aircraft due to air currents or the gradual shift in attitudes, opinions, or positions. In geology, it refers to debris deposited by natural agents, such as glaciers or running water. The Earth's magnetic field also exhibits secular variation, with non-dipole components showing a westward drift over time.23