Definition of auxiliary adjective from the Oxford Advanced Learner's Dictionary



    BrE BrE//ɔːɡˈzɪliəri//
    ; NAmE NAmE//ɔːɡˈzɪliəri//
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  1. 1(of workers) giving help or support to the main group of workers synonym ancillary auxiliary nurses/workers/services
  2. 2(specialist) (of a piece of equipment) used if there is a problem with the main piece of equipment an auxiliary pump
  3. Word Originlate Middle English: from Latin auxiliarius, from auxilium ‘help’.
See the Oxford Advanced American Dictionary entry: auxiliary