drift excursion

== English == === Etymology === Originally a reference to the excursion or deviation of a sea vessel from its course due to drift resulting from tides, wind, etc., this term has been generalized to refer to any deviation in position due to outside forces. === Noun === drift excursion (plural drift excursions) The movement of something (such as a vehicle, structure, or charged particles) from its intended course or position due to outside forces. ==== See also ====