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Attenuation is a 11 letter word which starts with the letter A and ends with the letter N for which we found 3 definitions.

(n.) The act or process of making slender or the state of being slender; emaciation.
(n.) The act of attenuating; the act of making thin or less dense or of rarefying as fluids or gases.
(n.) The process of weakening in intensity; diminution of virulence; as the attenuation of virus.
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