Serving to weaken, reduce, or make thinner; having the effect of attenuation.
From Latin 'attenuativus,' formed from 'attenuare' with the suffix '-ive' indicating a tendency or function to perform an action.
The suffix '-ive' appears in many scientific terms to describe things by their function: 'attenuative' describes anything whose job is to weaken something else, like acoustic foam or a resistor.
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