Meaning of AMPLITUDE in English


/ ˈæmplɪtjuːd; NAmE -tuːd/ noun

[ U , C ] ( physics ) the greatest distance that a wave, especially a sound or radio wave, vibrates (= moves up and down)



mid 16th cent. (in the senses physical extent and grandeur ): from Latin amplitudo , from amplus large, abundant.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.