attenuate
attenuate
verb
attenuation
noun
语源
verb
- [with obj.](常作 be attenuated)reduce the force, effect, or value of
使减弱；使减少（力量、效果或价值）
her intolerance was attenuated by an unexpected liberalism.
那种意想不到的自由放任行为使她难以忍耐。
■reduce the amplitude of (a signal, electric current, or other oscillation)
减弱，减少（信号、电流或振动）
■[no obj.](of a signal, electric current, or other oscillation) be reduced in amplitude
（信号、电流振动）减弱
■[usu. as adj. attenuated]reduce the virulence of (a pathogenic organism or vaccine)
减弱（病原体或疫苗的）毒性
attenuated strains of rabies virus.
减低了毒性的狂犬病病毒菌种。
■reduce in thickness; make thin
（使）变稀薄
- (rare)reduced in force, effect, or physical thickness
(罕)（在力量、效果或厚度上）减弱的，减少的
attenuation
noun
语源
- mid 16th cent.: from Latin attenuat- 'made slender', from the verb attenuare, from ad- 'to' + tenuare 'make thin' (from tenuis 'thin')
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