longitudinal wave
noun/ˌlɒŋɡɪˌtjuːdənl ˈweɪv/, /ˌlɒndʒɪˌtjuːdənl ˈweɪv/
/ˌlɑːndʒəˌtuːdənl ˈweɪv/
(physics)- a wave that vibrates in the direction that it is moving compare transverse wave
Check pronunciation:
longitudinal wave