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De - Pt| English Dictionary: Attenuation | by the DICT Development Group |
| 3 results for Attenuation | |
| From WordNet (r) 3.0 (2006) [wn]: | |
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| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Attenuation \At*ten`u*a"tion\, n. [L. attenuatio: cf. F. att[82]nuation.] 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. | |
| From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
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attenuation signal as it travels farther from the point of origin. For example, an electric signal's amplitude reduces with distance due to electrical {impedance}. Attenuation is usually measured in {decibels} [per metre?]. Attenuation does not imply appreciable modification of the shape of the waveform (distortion), though as the signal amplitude falls the {signal-to-noise ratio} will also fall unless the channel itself is noise free or the signal is amplified at some intermediate point(s) along the channel. ["Networking Essentials, second edition", Microsoft Corporation, pub. Microsoft Press 1997]. (2003-07-29) | |
