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English definition of “simultaneous”

simultaneous

adjective     /ˌsɪm.əlˈteɪ.ni.əs/ US  /ˌsaɪ.məl-/
C1 happening or being done at exactly the same time: There were several simultaneous explosions in different cities.Simultaneous and consecutiveOrder and sequence simultaneously     /-li/ adverb B2 Two children answered the teacher's question simultaneously.Simultaneous and consecutiveOrder and sequence simultaneousness     /-nəs/ noun [U] (also simultaneity, /-təˈneɪ.ə.ti/ US  /-təˈniː.ə.t̬i/)
(Definition of simultaneous adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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