am·pli·tude
noun/ˈæmplɪtjuːd/
/ˈæmplɪtuːd/
[uncountable, countable] (physics)- the greatest distance that a wave, especially a sound or radio wave, vibrates (= moves up and down)
enlarge image（声波、无线电波等的）振幅 WordfinderTopics Physics and chemistryc2- amplitude
- atom
- energy
- fission
- force
- frequency
- gravity
- molecule
- nuclear
- physics
Word Originmid 16th cent. (in the senses ‘physical extent’ and ‘grandeur’): from Latin amplitudo, from amplus ‘large, abundant’.