Meaning of “longitudinal wave” in the English Dictionary

british dictionary

"longitudinal wave" in British English

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longitudinal wavenoun [ C ]

uk /lɒn.dʒɪˌtjuː.dɪ.nəl ˈweɪv/ us /lɑːn.dʒəˌtuː.dɪ.nəl ˈweɪv/ specialized

a wave moving in the same direction of travel as the vibrations (= fast movements backwards and forwards) of the particles of the substance through which it is travelling

(Definition of “longitudinal wave” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"longitudinal wave" in American English

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longitudinal wavenoun [ C ]

us /ˈlɑn·dʒəˈtu·dən·əl ˈweɪv/

physics a wave in which the substance the wave travels through moves in the same direction of the wave itself. Sound waves are longitudinal waves.

(Definition of “longitudinal wave” from the Cambridge Academic Content Dictionary © Cambridge University Press)