ATTENUATE
At*ten"u*ate, v. i.

Defn: To become thin, slender, or fine; to grow less; to lessen.
The attention attenuates as its sphere contracts. Coleridge.

ATTENUATE; ATTENUATED
At*ten"u*ate, At*ten"u*a`ted, a. Etym: [L. attenuatus, p. p.]

1. Made thin or slender.

2. Made thin or less viscid; rarefied. Bacon.

ATTENUATION
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.

ATTER
At"ter, n. Etym: [AS. ætter.]