attenuation
Gradual strength loss
Attenuation is the gradual reduction or weakening of something as it passes through a medium or over distance.
Sound attenuates through walls; radio signals attenuate over miles; light attenuates in murky water.
In medicine, an attenuated virus has been weakened for use in vaccines.
The word appears in technical contexts—physics, engineering, epidemiology—more than everyday speech.
Reduction in size
- reductionMaking something smaller
- lesseningBecoming reduced in degree
- declineDecrease or refuse
- decreaseBecome or make smaller
waning · fading · ebbing · tapering · subsiding · mitigation · moderation · softening
Electromagnetic radiation unit
- infraredHeat-bearing electromagnetic waves
- ultravioletWavelengths shorter than violet
- microwaveRadiation-based kitchen heater
- absorbanceLight uptake measurement
spectroscopy · opacity · transmittance · wavelength · radiation · electromagnetic · coefficient · medium
Acoustic intensity units
- bandwidthData transmission capacity
- frequencyRate of recurrence
- noiseUnwanted auditory disturbance
- amplifierSignal-strengthening electronic device
transmission · waveform · filtering · propagation · receiver · transmitter · antenna · crosstalk
Rapid oscillating movement
- oscillationRepeated back-and-forth movement
- resonanceAmplified oscillation at natural frequency
- frictionResistance between touching surfaces
- suspensionTemporary halt or exclusion
spring · harmonic · amplitude · mechanical · structural · seismic · isolation
Microscopic infectious agent
- pathogenDisease-causing microorganism
- virulenceCapacity to cause disease
- immunizationProtective medical injection
- strainExcessive stretching force
weakened · inoculation · MMR · polio · measles · mumps · rubella · smallpox
diminution
Reduction in size
decrease · waning · fading · ebbing · tapering · subsiding · mitigation · moderation · softening · tempering
photon
Electromagnetic radiation unit
- infraredHeat-bearing electromagnetic waves
- ultravioletWavelengths shorter than violet
- microwaveRadiation-based kitchen heater
absorbance · spectroscopy · opacity · transmittance · wavelength · radiation · electromagnetic · coefficient · medium · scattering
decibels
Acoustic intensity units
amplifier · transmission · waveform · filtering · propagation · receiver · transmitter · antenna · crosstalk · distortion
vibration
Rapid oscillating movement
- oscillationRepeated back-and-forth movement
- resonanceAmplified oscillation at natural frequency
- frictionResistance between touching surfaces
suspension · spring · harmonic · amplitude · mechanical · structural · seismic · isolation
virus
Microscopic infectious agent
- pathogenDisease-causing microorganism
- virulenceCapacity to cause disease
- immunizationProtective medical injection
strain · weakened · inoculation · MMR · polio · measles · mumps · rubella · smallpox · immunity
concentration
Sustained single-minded attention
- solutionAnswer or liquid mixture
- solventDissolving liquid or financially stable
- soluteSubstance absorbed by solvent
tincture · homeopathic · dissolve · saline · buffer · titration · reagent · aliquot · volumetric
viscosity
Fluid's flow resistance
- consistencyReliable adherence to standards
- paintColored coating substance
- resinViscous plant secretion
lacquer · varnish · thinner · turpentine · acetone · solvent · coating · spray · flow · emulsion
- material dynamicsdamping, elasticity, viscoelasticity, stiffness, resonance
- Transport PhysicsBoltzmann equation, diffusion, scattering, flux, cross sections
- telecommunicationscell phone, cellphone, signals, cellular network, telephone calls
- decayrot, decay rate, wilt, crumble, decomposition
- decreasesreduction, decline, drop, fall, decrease
- acousticssound waves, sound wave, sound, soundwave, vibration
attenuationamplification
Increase in intensity
gain · boosting · intensification · augmentation · increase
attenuationstrengthening
Increasing power or solidity
rehabilitation · recovery · restoration · health · regeneration
attenuationvirulence
Capacity to cause disease
potentiation · exacerbation · intensification · rehabilitation · health
- wave attenuationReduction in wave intensity