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1. Oxford American Dictionary

   attenuate

   • v.
     reduce the force, effect, or value of；reduce the amplitude of (a signal, electric current, or other oscillation)
   • adj.
     reduced in force, effect, or physical thickness

   • verb: attenuate, 3rd person present: attenuates, gerund or present participle: attenuating, past tense: attenuated, past participle: attenuated

2. • 釋義

   v.

   動詞

   • 1. reduce the force, effect, or value of this research provides a glimmer of hope that coral reefs can attenuate the effects of ocean acidification
   • ▪ reduce the amplitude of (a signal, electric current, or other oscillation) the filter must severely attenuate frequencies above 10 Hz
   • ▪ reduce the virulence of (a pathogenic organism), especially when preparing a vaccine the first live vaccine was insufficiently attenuated and produced a significant disease
   • 2. reduce in thickness; make thin.

   adj.

   形容詞

   • 1. rare reduced in force, effect, or physical thickness the doctrines of Christianity became very attenuate and distorted