Not that I disagree with you, but I think you need to let dictionary.com know that they are wrong that since DJI P3 does do what is in the definition below, that they are not to include it because its a quadcopter instead........
drone
[drohn]
noun
1.
the male of the honeybee and other bees, stingless and making nohoney.
2.
- 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.
3.
a person who lives on the labor of others; parasitic loafer.
Once again this goes back to my original comparison with guns. PERCEPTION is key