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English definition of “automatic”

automatic

adjective     /ˌɔːtəˈmætɪk/
MACHINE B2 An automatic machine works by itself or with little human control: automatic doorsMechanical engineering
CERTAIN certain to happen as part of the normal process or system: You get an automatic promotion after two years.Inevitable
REACTION done as a natural reaction without thinking: My automatic response was to pull my hand away.Reacting and responding
automatically adverb
(Definition of automatic adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

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