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  • Definition
    • effect :a phenomenon that follows and is caused by some previous phenomenon
      • the magnetic effect was greater when the rod was lengthwise|his decision had depressing consequences for business|he acted very wise after the event

    • effect :produce
      • The scientists set up a shock wave

    • effect :an outward appearance
      • he made a good impression|I wanted to create an impression of success|she retained that bold effect in her reproductions of the original painting

    • effect :act so as to bring into existence
      • effect a change

    • effect :an impression (especially one that is artificial or contrived)
      • he just did it for effect

    • effect :(of a law) having legal validity
      • the law is still in effect

    • effect :a symptom caused by an illness or a drug
      • the effects of sleep loss|the effect of the anesthetic

    • effect :the central meaning or theme of a speech or literary work

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    • Derivative