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

automatic

adjective
 
/ˌɔːtəˈmætɪk/
 
/ˌɔːtəˈmætɪk/
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  1. (of a machine, device, etc.) having controls that work without needing a person to operate them
    • automatic doors
    • a fully automatic driverless train
    • automatic transmission (= in a car, etc.)
    • an automatic rifle (= one that continues to fire as long as the trigger is pressed)
    • My camera has manual and automatic functions.
    Oxford Collocations Dictionaryverbs
    • be
    adverb
    • completely
    • fully
    See full entry
  2. done or happening without thinking synonym instinctive
    • Breathing is an automatic function of the body.
    • My reaction was automatic.
  3. always happening as a result of a particular action or situation
    • A fine for this offence is automatic.
    • Promotion was almost automatic after two or three years.
    Oxford Collocations Dictionaryverbs
    • be
    adverb
    • almost
    • virtually
    See full entry
  4. Word Originmid 18th cent.: from Greek automatos ‘acting of itself’, from autos ‘self’. + -ic.
See automatic in the Oxford Advanced American DictionarySee automatic in the Oxford Learner's Dictionary of Academic English
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