attenuate

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at·ten·u·ate

(ă-ten'yū-āt),
To dilute, thin, reduce, weaken, diminish.
[L. at-tenuo, pp. -tenuatus, to make thin or weak, fr. tenuis, thin]
Farlex Partner Medical Dictionary © Farlex 2012

attenuate

(ə-tĕn′yo͞o-āt′)
v. attenu·ated, attenu·ating, attenu·ates
v.tr.
1. To reduce in force, value, amount, or degree; weaken: Medicine attenuated the fever's effect.
2. To lessen the density of; rarefy.
3. Biology To make (bacteria or viruses) less virulent.
4. 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.

at·ten′u·a′tion n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

at·ten·u·ate

(ă-ten'yū-āt)
To dilute, thin, reduce, weaken, diminish.
[L. at-tenuo, pp. -tenuatus, to make thin or weak, fr. tenuis, thin]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

attenuate

(of a leaf or plant structure) gradually tapering to a long slender point.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Finally, if the concrete slab is not completely level before the sound attenuating blanket is glued down, the bond of adhesive will break and de-lamination will occur.
With ideal data, attenuating both specularly-reflected and diffracted multiples could be, in principle, accomplished simply by zeroing out (with a suitable taper) all the q-planes except the one corresponding to q = 0 in the cube model m(z',q,h), and taking the inverse apex-shifted Radon transform.
However, the standard does not require impact attenuating surfacing for spray parks or other facilities where aquatic play equipment is designed and installed to be climb-resistant.
Sha and Schacht reported that iron-chelating agents were useful in attenuating aminoglycoside-induced cochlear damage.
EpiGenesis has demonstrated the utility of EPI-2010 in attenuating the expression of the adenosine A1 receptor and the adenosine-mediated bronchoconstrictive and inflammatory responses using several animal models, including the primate.
An improved sound attenuating elastomeric alloy will provide significant benefits in applications that include sound barriers, seals and covers in industries such as automotive, office equipment, appliances and industrial equipment.
Thus, periods of prolonged cloudiness and severe smoke pollution could play a role in initiating avian and other influenza outbreaks by attenuating the solar UV-B that might otherwise suppress influenza viruses in outdoor air exposed to sunlight.