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Definition of longitudinal wave noun from the Oxford Advanced Learner's Dictionary

longitudinal wave

noun

/ˌlɒŋɡɪˌtjuːdənl ˈweɪv/,

/ˌlɒndʒɪˌtjuːdənl ˈweɪv/

/ˌlɑːndʒəˌtuːdənl ˈweɪv/

(physics)

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a wave that vibrates in the direction that it is moving compare transverse wave

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See longitudinal wave in the Oxford Advanced American Dictionary

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