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a. a wave carrying energy away from its source
b. (as modifier): a travelling-wave aerial.
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|Noun||1.||travelling wave - a wave in which the medium moves in the direction of propagation of the wave|
solitary wave, soliton, soliton wave - (physics) a quantum of energy or quasiparticle that can be propagated as a traveling wave in nonlinear systems and is neither preceded nor followed by another such disturbance; does not obey the superposition principle and does not dissipate; "soliton waves can travel long distances with little loss of energy or structure"