01 n. The act or process of making slender, or the state of being slender; emaciation.
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1.
The act or process of making slender, or the state of being slender; emaciation.
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2.
The act of attenuating; the act of making thin or less dense, or of rarefying, as fluids or gases.
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3.
The process of weakening in intensity; diminution of virulence; as, the attenuation of virus.