attenuation

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at·ten·u·ate

 (ə-tĕn′yo͞o-āt′)
v. at·ten·u·at·ed, at·ten·u·at·ing, at·ten·u·ates
v.tr.
1. To make slender, fine, or small: The drought attenuated the river to a narrow channel.
2. To reduce in force, value, amount, or degree; weaken: Medicine attenuated the fever's effect.
3. To lessen the density of; rarefy.
4. Biology To make (bacteria or viruses) less virulent.
5. Electronics To reduce (the amplitude of an electrical signal) with little or no distortion.
v.intr.
To become thin, weak, or fine.
adj. (-yo͞o-ĭt)
1. Reduced or weakened, as in strength, value, or virulence.
2. Botany Gradually tapering to a slender point.

[Latin attenuāre, attenuāt- : ad-, ad- + tenuāre, to make thin (from tenuis, thin; see ten- in the Appendix of Indo-European roots).]

at·ten′u·a′tion n.

attenuation

(əˌtɛnjʊˈeɪʃən)
n
1. the act of attenuating or the state of being attenuated
2. (General Physics) the loss of energy suffered by radiation as it passes through matter, esp as a result of absorption or scattering

at•ten•u•a•tion

(əˌtɛn yuˈeɪ ʃən)

n.
1. the act of attenuating or the state of being attenuated.
2. the process by which a virus, bacterium, etc., changes under laboratory conditions to become harmless or less virulent.
[1585–95; (< Middle French) < Latin]

attenuation

1. Decrease in intensity of a signal, beam, or wave as a result of absorption of energy and of scattering out of the path of a detector, but not including the reduction due to geometric spreading, i.e., the inverse square of distance effect.
2. In mine warfare, the reduction in intensity of an influence as distance from the source increases.
3. In camouflage and concealment, the process of making an object or surface less conspicuous by reducing its contrast to the surroundings and/or background. Also called tone down.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.attenuation - weakening in force or intensity; "attenuation in the volume of the sound"
weakening - becoming weaker
2.attenuation - the property of something that has been weakened or reduced in thickness or density
weakness - the property of lacking physical or mental strength; liability to failure under pressure or stress or strain; "his weakness increased as he became older"; "the weakness of the span was overlooked until it collapsed"

attenuation

noun
The depletion or sapping of strength or energy:
Translations

attenuation

[əˌtenjʊˈeɪʃən] Natenuación f, disminución f

attenuation

n (= weakening)Abschwächen nt, → Abschwächung f; (of statement also)Abmildern nt, → Abmilderung f; (= making thinner)Verdünnung f

at·ten·u·a·tion

n. atenuación, acto de disminución, esp. de una virulencia.
References in periodicals archive ?
12) The Bank regularly looks at a measure of long-term inflation expectations based on breakeven rates from real return bonds, adjusted to try to attentuate fluctuations in inflation-risk premiums.
negative relation between growth and per capita real income) may attentuate as per capita real income rises.
Carbon dioxide attentuates pulmonary impariment resulting from hyperventilation.