amplitude


Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Encyclopedia, Wikipedia.
Related to amplitude: amplitude modulation

amplitude

 [am´plĭ-to̳d]
1. largeness, fullness; wideness or breadth of range or extent.
2. in conventional tomography, the motion of the x-ray tube (with the cassette moving in the opposite direction) during the x-ray exposure.

am·pli·tude

(am'pli-tūd),
Largeness; extent; breadth or range.
[L. amplitudo, fr. amplus, large]

amplitude

/am·pli·tude/ (am´plĭ-tldbomacd)
1. largeness, fullness; wideness in range or extent.
2. in a phenomenon that occurs in waves, the maximal deviation of a wave from the baseline.

amplitude of accommodation  amount of accommodative power of the eye.

amplitude

[am′plityo̅o̅d]
Etymology: L, amplus, wide
the width or breadth of range or extent, such as amplitude of accommodation or amplitude of convergence.

amplitude

An MRI term for the strength (height) of a signal; the greater the amplitude of an MRI signal, the larger the number of protons in the image and the brighter it will appear.

amplitude

Cardiac pacing The maximum absolute value attained by an electrical waveform, or any quantity that varies periodically; pacemaker amplitudes express the value of the potential difference in volts or current flow in amperes; pacemaker output pulses have typically averaged 5 volts and 10 milliamps. See Relative fusional vergence.

am·pli·tude

(am'pli-tūd)
Largeness; extent; breadth or range.
[L. amplitudo, fr. amplus, large]

am·pli·tude

(am'pli-tūd)
Largeness, extent, breadth, or range.
[L. amplitudo, fr. amplus, large]

amplitude

largeness, fullness; wideness or breadth of range or extent.

amplitude mode
see A-mode ultrasonography.
References in periodicals archive ?
9 that the gel fraction and crosslink density of the ultrasonically decrosslinked XHDPE decreases with the treatment time and the ultrasonic amplitude.
From this investigation, the obtained result shows that the medium vibration amplitude (0.
This plot indicates that the average current and the dither amplitude are restricted in the conventional PWM method because it varies the duty cycle only at a fixed frequency.
Not only for comparison with graphical representations of amplitude functions calculated in coordinates of other systems but also to present quantitatively accurate shapes and sizes of these functions, we exhibit here some selected examples.
Although the palm SSR amplitude was significantly different in group 3 (height [greater than or equal to] 170 cm) compared with group 2, it has no clinical meaning since such difference was not found between group 3 and 1.
Setting the amplitude and frequency of vibrations is accomplished by externally added potentiometers or by the keyboard if in manual mode or directly by the microcontroller in automatic mode.
Ao compararmos os metodos entre si, foi observado que na latencia e na amplitude do P2 houve diferenca estatisticamente significativa sendo que a media obtida na latencia no metodo contando mentalmente foi de 178,6ms e a media obtida na metodo de marcar no papel foi de 187,9ms (Figura 5 e Tabela 2).
The prototype is able to carry out sinusoidal oscillations with an adjustable amplitude and frequency.
An increased F wave amplitude was a result of the participation of an increased number of neurons giving recurrent discharge, [sup][17],[25] more frequent discharge of the responding neurons that produced F responses [sup][19] and an increased number of large motor units that resulted from axonal sprouting during the process of compensatory reinnervation.
Several studies have reported changes in the activity of heart including P-wave amplitude and axis, rightward displacement of QRS axis, reduction of amplitude of QRS complex in limb and precordial leads, sinus tachycardia, right bundle branch block (RBBB) etc.
Paired t-tests were used to compare the patient-control difference in P500 amplitude to the patient-control difference in P700 amplitude at each of the four electrode placements.
The shocks which are still being recorded, he said are tremors with a high amplitude.