I'm sure there's a name for this phenomenon. We shouldn't be calling remotely piloted quadcopters drones either, but "drone" has become a modern colloquialism f

I'm sure there's a name for this phenomenon. We shouldn't be calling remotely piloted quadcopters drones either, but "drone" has become a modern colloquialism for any UAV that isn't a remote controlled hobby plane. I imagine this is one of the ways in which language evolves, for better or for worse.