quadcopter - definition and synonyms

  1.   From our crowdsourced Open Dictionary
    a small helicopter which has four rotors (=one of the long flat pieces of metal on top of a helicopter that turn around to lift it off the ground) and is not flown by a human

    The service will use an autonomous quadcopter to deliver small parcels to the German island of Juist ...

    Submitted from United Kingdom on 28/11/2014