# amplitude

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## am·pli·tude

(ăm′plĭ-to͞od′, -tyo͞od′)
n.
1. Greatness of size; magnitude.
2. Fullness; copiousness.
3. Breadth or range, as of intelligence.
4. Astronomy The angular distance along the horizon from true east or west to the intersection of the vertical circle of a celestial body with the horizon.
5. Physics The maximum absolute value of a periodically varying quantity.
6. Mathematics
a. The maximum absolute value of a periodic curve measured along its vertical axis.
b. The angle made with the positive horizontal axis by the vector representation of a complex number.
7. Electronics The maximum absolute value reached by a voltage or current waveform.

[Latin amplitūdō, from amplus, large.]

## amplitude

(ˈæmplɪˌtjuːd)
n
1. greatness of extent; magnitude
2. abundance or copiousness
3. breadth or scope, as of the mind
4. (Astronomy) astronomy the angular distance along the horizon measured from true east or west to the point of intersection of the vertical circle passing through a celestial body
5. (Mathematics) maths Also called: argument (of a complex number) the angle that the vector representing the complex number makes with the positive real axis. If the point (x, y) has polar coordinates (r, θ), the amplitude of x + iy is θ, that is, arctan y/x. Compare modulus2 See also Argand diagram
6. (General Physics) physics the maximum variation from the zero or mean value of a periodically varying quantity
[C16: from Latin amplitūdō breadth, from amplus spacious]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## am•pli•tude

(ˈæm plɪˌtud, -ˌtyud)

n.
1. the state or quality of being ample, esp. as to breadth or width; largeness.
2. large or full measure; abundance.
3. mental range, scope, or capacity.
4. the absolute value of the maximum displacement from a zero value during one period of an oscillation.
5. the maximum deviation of an alternating current from its average value.
6. the arc of the horizon measured from the east or west point to the point where a vertical circle through a heavenly body would intersect the horizon.
[1540–50; < Latin amplitūdō. See ample, -i-, -tude]

## am·pli·tude

(ăm′plĭ-to͞od′)
One half the full extent of a vibration, oscillation, or wave. The amplitude of an ocean wave, for example, is the maximum height of the wave crest above the level of calm water, or the maximum depth of the wave trough below the level of calm water. The amplitude of a pendulum swinging through an angle of 90° is 45°. See more at wave.

## amplitude

A wave’s greatest displacement from equilibrium.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 amplitude - (physics) the maximum displacement of a periodic wavenatural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"shift, displacement - an event in which something is displaced without rotation 2 amplitude - the property of copious abundance  abundance, copiousness, teemingness - the property of a more than adequate quantity or supply; "an age of abundance" 3 amplitude - greatness of magnitudemagnitude - the property of relative size or extent (whether large or small); "they tried to predict the magnitude of the explosion"; "about the magnitude of a small pea"signal level - the amplitude level of the desired signalbackground level, noise level - the amplitude level of the undesired background noise
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

## amplitude

noun
1. a man of great amplitude
2. The character comes to imply an amplitude of meanings.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

## amplitude

noun
1. Great extent, amount, or dimension:
bulk, magnitude, mass, size, volume (often used in plural).
2. The quality or state of being large in amount, extent, or importance:
Translations
amplituda
amplitudilaajuus
amplituda
amplitude
amplitudmagnitud

## amplitude

[ˈæmplɪtjuːd] N
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

## amplitude

[ˈæmplɪtjuːd] n
(= strength) [soundwave, signal] →
(= largeness) →
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

## amplitude

n (of knowledge)Weite f, → Breite f; (of bosom)Üppigkeit f, → Fülle f; (Phys) → Amplitude f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

## amplitude

[ˈæmplɪˌtjuːd] n (Math, Phys) → ampiezza
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
Caption: Figure 5--(a) dynamic stiffness (K*), (b) phase angle and (c) transmissibility (Tr) of natural rubber composites at 0.01 mm peak to peak amplitude; C, E and S represent the amount in phr of carbon black, eggshells and silica in the composite, respectively
The parameters that are measured in time-domain waveform are time of arrival and peak to peak amplitude. Time of arrival of an ultrasonic wave passing through a dense medium should be smaller than the porous or damaged material.
Throughout the observation period, both, peak amplitude and frequency, did not exhibit any particular trend, with the exception of a slight increase in amplitude within the period of January to mid-March, 2013.
[eta] is the scaling parameter that sets both peak amplitude and inverse duration.
Several Gaussian modelling characteristics, including the peak amplitude, the peak time positions, and half-width of Gaussian waves, have been extracted from each Gaussian function to reflect the physiological changes of peripheral circulatory system.
In experiments, only the peak amplitude is measured from A-scan response because this is the simplest method.
(1967), and measured the peak-to peak amplitude because it was considered to reflect the primary emotional processing in relation to the premier expression.
Therefore, the method based on positive and negative peak detection by applying an adaptive, relatively wide moving difference window and signal peak amplitude evaluation was developed and implemented in the system to ensure a reliable respiratory events (inspiration or expiration) identification.
The relative reliability calculations showed significant agreements between repetitions for the mean and peak amplitude and the average of median frequency (MDF) of the studied muscles function during most swallowing types in both groups.

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