attenuation
n. மெலிவு, நொய்ம்மை, நுண்மை.
At*ten`u*a"tion, n. Etym: [L. attenuatio: cf. F. atténuation.] 1. The act or process of making slender, or the state of being slender; emaciation. 2. The act of attenuating; the act of making thin or less dense, or of rarefying, as fluids or gases. 3. The process of weakening in intensity; diminution of virulence; as, the attenuation of virus.