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Definition of amplitude
1 : the extent or range of a quality, property, process, or phenomenon: such asa : the extent of a vibratory movement (as of a pendulum) measured from the mean position to an extremeb : the maximum departure of the value of an alternating current or wave from the average value
2 : extent of dignity, excellence, or splendor
3 : the quality or state of being ample : fullness, abundance … the long unerring lines, the sweep and amplitude of the great artist's stroke … — Edith Wharton
4 mathematics : the angle assigned to a complex number when it is plotted in a complex plane using polar coordinates —called also argument — compare absolute value 2
5 : the height achieved on a jump by a snowboarder, skateboarder, skier, etc. “ … a lot of my strength in snowboarding is my amplitude … ” — Shaun White
From the M-W Editors
Examples of amplitude in a Sentence
the amplitude of Thomas Jefferson's interests—government, architecture, agriculture, science, philosophy—is truly awesome
Recent Examples of amplitude from the Web
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The wave may reach maximum amplitude in the lower middle troposphere.
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By teaching computers to differentiate between the different amplitudes and frequencies that make up sounds, Zysman said, the sensor could offer cities a low-tech option to measuring traffic flow and density.
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That’s because, despite Malick’s daringly collage-like assemblage of images that only dart across the surfaces of their narrative elements, the movie has a rich, complex, thoroughly imagined plot of a novelistic amplitude.
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That works because Goji has added to the RF technology precise sensors that can read the makeup, thickness and moisture of the food and appropriately adapt the frequency, phase and amplitude of the radio waves.
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Ms. Gerrity has warmth, delicacy, loveliness; Ms. Kikta has heroic amplitude and terrific impetus; Ms. Phelan has fantasy, poetry, liquidity.
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From the timing and amplitude of those intermittent twinkles, the team could determine their sizes and orbits.
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Calvert interprets the package of higher amplitude reflectors (darker color) as the underthrusting Juan de Fuca plate.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'amplitude'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of amplitude
see ample
Other Physics Terms
AMPLITUDE Defined for English Language Learners
amplitude
playDefinition of amplitude for English Language Learners
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: a measurement that indicates the movement or vibration of something (such as a sound wave or a radio wave)
Medical Dictionary
amplitude
playMedical Definition of amplitude
1: the extent or range of a quality, property, process, or phenomenon: asa: the extent of a vibratory movement (as of a pendulum) measured from the mean position to an extremeb: the maximum departure of the value of an alternating current or wave from the average value
Learn More about amplitude
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See words that rhyme with amplitude Thesaurus: All synonyms and antonyms for amplitude Britannica English: Translation of amplitude for Arabic speakers Britannica.com: Encyclopedia article about amplitude
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