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attenuate

/əˈten.ju.eɪt/
IELTSAcademic
verb

To make something weaker, thinner, or less strong. It is often used in science, medicine, and formal writing.

  • The medicine attenuated the virus's effects.
  • Noise can attenuate the signal.
  • The fabric attenuates the sunlight.

Adinary Nuance

Attenuate is more formal than weaken and often sounds scientific or technical. It focuses on reducing strength, intensity, or thickness, not just causing general harm. Writers may choose attenuate when they want a precise, measured word instead of the simpler weaken or reduce.

In other languages

Vietnamese
làm suy yếu
Spanish
atenuar
Chinese
减弱
Japanese
弱める
Korean
약화시키다

Etymology

Attenuate comes from Latin attenuare, meaning “to make thin.” It entered English in the 16th century through formal and scientific writing.

Common phrases

attenuate a signalattenuate the effectattenuate symptoms

Synonyms

Related words

Frequently asked questions

Is attenuate a common everyday word?
No, it is more common in academic, medical, and technical English.
What is the difference between attenuate and weaken?
Weaken is more general. Attenuate is more formal and often means reduce strength or intensity.
Can I use attenuate in business writing?
Yes, but it may sound very formal. Weaken or reduce is often simpler.