Simple Definition of attenuate

from our Learner's Dictionary

attenuate

verb

əˈtɛnjəˌweɪt

attenuates; attenuated; attenuating

formal : to make (something) weaker or less in amount, effect, or force

Earplugs will attenuate the loud sounds of the machinery.

an attenuated virus

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“Attenuate.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/attenuate. Accessed 20 Jun. 2026.

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