Technology / Motorcycle / Bow Wave: A wave of water pushed ahead of a tire, similar to the wave pushed ahead of a boat moving through water.
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Bow Noun Synonyms: nod, curtsy or curtsey, salaam, genuflection, prostration, obeisance
Bow Verb Synonyms: defer, yield, submit, give in, bend, bow down, capitulate
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Wave Adjective Synonyms: swell, undulation, billow, sea, heave, roller, whitecap, white horse, ripple, wavelet, breaker, comber
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Science / Geology / Seismic Surface Wave: A seismic wave that follows the earth's surface only, with a speed less than that of S-waves. There are Raleigh waves (forward and vertical vibrations) and Love waves (transverse vibrations). MORE
Science / Tides and Currents / Shallow Water Wave: A wave is classified as a shallow water wave whenever the ratio of the depth (the vertical distance of the still water level from the bottom) to the wave length (the horizontal distance between crests MORE
Science / Geology / S-Wave: Secondary seismic waves. A seismic wave with a direction of vibration that is perpendicular to the direction of travel. S-waves are slower than P-waves and travel only through solids. MORE
Science / Weather / Rossby Waves: The movement of ridges and troughs in the upper wind patterns, primarily the jet stream, circling the earth. Named for Carl-Gustaf Rossby, a U.S. Weather Bureau (NWS) employee, who first theorized abo MORE
Science / Geology / Refraction (Wave): The departure of a wave from its original direction of travel at the interface with a material of different index of refraction (light) or seismic wave velocity (see also Seismic refraction). MORE