For instance, those with master's degrees usually do not list their bachelor's degrees (only the highest earned degree), and a staff nurse would likely not list an MBA, but a nurse manager might choose to do so.
An unmanned aircraft system is an unmanned aircraft and the equipment necessary for the safe and efficient operation of that aircraft. An unmanned aircraft is a component of a UAS. It is defined by statute as an aircraft that is operated without the possibility of direct human intervention from within or on the aircraft (Public Law 112-95, Section 331(8)).
the male of the honeybee and other bees, stingless and making no honey. an unmanned aircraft or ship that can navigate autonomously, without human control or beyond line of sight: the GPS of a U.S. spy drone. (loosely) any unmanned aircraft or ship that is guided remotely: a radio-controlled drone.