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Definition of amplitude

amplitude

/ˈæm.pləˌtuːd/
am · pli · tude
Adverb:amply
•
Plural:amplitudes
•
Adjective:ample
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amplitude Lexical Profile

amplitude Game Scores & Validity

• noun

1

In physics, the maximum extent of a vibration or oscillation, measured from the position of equilibrium.

Example

"Increasing the amplitude of a sound wave directly increases its perceived loudness."

2

Breadth, range, or abundance of size, extent, or intellect.

Example

"The historian was praised for the impressive amplitude of her archival research."

3

In astronomy, the angular distance of a celestial body at rising or setting from the true east or west point of the horizon.

Example

"Early navigators measured the sun's amplitude at sunrise to determine magnetic compass variation."

Synonyms
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Antonyms
View all antonyms for amplitude

• Nearby Words

amplification
amplifier
amplify
amplitude
amply
ampoule
ampule

Word Origin & Etymology

Borrowed in the mid-16th century from Middle French amplitude or directly from Latin amplitudo ('wideness, breadth, vastness'), derived from amplus ('large, spacious').

Cite this Entry

Wordmom. (2026). Definition of Amplitude. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/amplitude
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