amplitude antinode apoplexy billow bore breakers breakup cataclysm chop choppiness chopping sea climax comb comber convulsion count crest de Broglie wave diastrophism diffraction dirty water disaster eagre election returns electromagnetic radiation electromagnetic wave fit frequency frequency band frequency spectrum gravity wave ground swell guided wave heave heavy sea heavy swell in phase interference landslide lift light longitudinal wave lop mechanical wave node official count out of phase overthrow paroxysm peak period periodic wave poll popple quake radio wave ray recount reinforcement resonance resonance frequency returns riffle ripple rise roll roller rough water scend sea seismic wave send shock wave sound wave spasm stroke surf surface wave surge swell temblor tidal bore tide wave transverse wave trough tsunami undulation upheaval water wave wave wave equation wave motion wave number wavelength wavelet white horses whitecaps