# amplitude
## English
### Etymology

Borrowed from Middle French amplitude, from Latin amplitūdō, from amplus (“large”). By surface analysis, ample +‎ -itude.

### Pronunciation

* (General American) IPA: /ˈæm.plɪ.tud/
* Audio (US):(file)

### Noun

amplitude (countable and uncountable, plural amplitudes)
* The measure of the size of something, especially its width or breadth; largeness, magnitude.
** 1655, Thomas Fuller, The Church-history of Britain; […], London: […] Iohn Williams […], →OCLC, (please specify |book=I to XI):The cathedral of Lincoln […] is a magnificent structure, proportionable to the amplitude of the diocese.
** 1671, John Milton, “The First Book”, in Paradise Regain’d. A Poem. In IV Books. To which is Added, Samson Agonistes, London: […] J[ohn] M[acock] for John Starkey […], →OCLC, page 2:amplitude of mind
** 1849–1861, Thomas Babington Macaulay, The History of England from the Accession of James the Second, volume (please specify |volume=I to V), London: Longman, Brown, Green, and Longmans, →OCLC:amplitude of comprehension
** 1911, G. K. Chesterton, The Innocence of Father Brown:As the two topped the ridge there burst on them the strong scarlet light of a red-curtained English inn. It stood sideways in the road, as if standing aside in the amplitude of hospitality.
* (mathematics) The maximum absolute value of the vertical component of a curve or function, especially one that is periodic.
* (physics) The maximum absolute value of some quantity that varies.
* (astronomy) The arc of the horizon between the true east or west point and the center of the sun, or a star, at its rising or setting. At the rising, the amplitude is eastern or ortive: at the setting, it is western, occiduous, or occasive. It is also northern or southern, when north or south of the equator.
* (astronomy) The arc of the horizon between the true east or west point and the foot of the vertical circle passing through any star or object.
* (firearms) The horizontal line which measures the distance to which a projectile is thrown; the range.
* (gymnastics) The range of motion of the gymnast's body while performing a skill.
* (ecology) The range of environmental conditions in which an organism can survive.

#### Derived terms

* amplitudal
* amplitude modulation
* amplitudeologist
* amplitudeology
* amplitude spectroscopy
* amplituhedron
* probability amplitude
* semiamplitude
* superamplitude

#### Related terms

* ample
* amplifiable
* amplification
* amplificatory
* amplifier
* amplify

#### Further reading

* “amplitude”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
* “amplitude”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.

## Dutch
### Etymology

Borrowed from French amplitude, from Latin amplitūdō.

### Pronunciation

* IPA: /ˌɑm.pliˈty.də/
* Audio:(file)
* Hyphenation: am‧pli‧tu‧de

### Noun

amplitude f (plural amplitudes, diminutive amplitudetje n)
* (mathematics, physics) amplitude

#### Derived terms

* amplitudemodulatie

#### See also

* frequentie
* golf

## French
### Etymology

From Latin amplitūdō.

### Pronunciation

* IPA: /ɑ̃.pli.tyd/
* Audio (Paris):(file)

### Noun

amplitude f (plural amplitudes)
* (mathematics, physics) amplitude

### Further reading

* “amplitude”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

## Norwegian Bokmål
### Etymology

From Latin amplitūdō.

### Noun

amplitude m (definite singular amplituden, indefinite plural amplituder, definite plural amplitudene)
* (mathematics, physics) amplitude

### References

* “amplitude” in The Bokmål Dictionary.

## Norwegian Nynorsk
### Etymology

From Latin amplitūdō.

### Noun

amplitude m (definite singular amplituden, indefinite plural amplitudar, definite plural amplitudane)
* (mathematics, physics) amplitude

### References

* “amplitude” in The Nynorsk Dictionary.

## Portuguese
### Etymology

Learned borrowing from Latin amplitūdō.

### Pronunciation

* (Brazil) IPA: /ɐ̃.pliˈtu.d͡ʒi/
* (Brazil) IPA: /ɐ̃.pliˈtu.d͡ʒi/
** (Southern Brazil) IPA: /ɐ̃.pliˈtu.de/
* (Portugal) IPA: /ɐ̃.pliˈtu.dɨ/ [ɐ̃.pliˈtu.ðɨ]

### Noun

amplitude f (plural amplitudes)
* amplitude; extent

#### Related terms

* amplo