(in science fiction) a member of a race of hostile alien machine-organisms which appeared in the BBC television serial Dr Who from 1963 (科幻小说用语)大来客(英国广播公司1963年起播送的电视连续剧《神秘博士》中怀有敌意的外星族成员)
语源
an invented word, coined by the author Terry Nation after a volume of an encyclopedia covering the alphabetical sequence dal–lek