He stopped his droning speeches and adopted a feisty, homey style answering questions on the tours.
Sort of a double life, like this Bob character you were droning on about earlier.
There was the chatter of a regiment of monkeys, the call of night birds innumerable, and the droning hum of the insects.
It came droning, droning up the forty-odd thousand miles from the planet.
The droning voice of Uncle Eb and the feel of his hand upon my forehead called me back, blinking, once or twice, but not for long.
Over the droning of the hymn she caught the sound of a horse's hoofs on the road.
It was like the sound of droning machinery, only very faint.
Then the droning voice of the Puritan minister greeted them.
By the winter of '49, the drowsy, droning Spanish town had expanded into a little excited city.
Naught was heard save the droning of the students and the sough of the wind in the forest.
Old English dran, dræn "male honeybee," from Proto-Germanic *dran- (cf. Middle Dutch drane; Old High German treno; German Drohne, which is from Middle Low German drone), probably imitative; given a figurative sense of "idler, lazy worker" (male bees make no honey) 1520s. Meaning "pilotless aircraft" is from 1946.
Drones, as the radio-controlled craft are called, have many potentialities, civilian and military. Some day huge mother ships may guide fleets of long-distance, cargo-carrying airplanes across continents and oceans. Long-range drones armed with atomic bombs could be flown by accompanying mother ships to their targets and in for perfect hits. ["Popular Science," November, 1946]Meaning "deep, continuous humming sound" is early 16c., apparently imitative (cf. threnody). The verb in the sound sense is early 16c.; it often is the characteristic sound of airplane engines. Related: Droned; droning.
In military usage, a pilotless aircraft used for reconnaissance and, more recently, for launching aerial attacks.