Cold Wave

Science / Weather / Cold Wave: A rapid fall in temperature within twenty-four hours to temperatures requiring substantially increased protection to agriculture, industry, commerce, and social activities. National Weather Service criteria includes the rate of temperature fall and the minimum to which it falls, depending on the region of the country and time of the in year. The Weather Channel uses the following criteria for a cold wave: a cold spell of two days or more with below normal temperatures in at least fifteen states, with at least five of them more than fifteen degrees below normal.

Other Words for Cold

Cold Adjective Synonyms: chill, chilly, frosty, icy, keen, nippy, freezing, frigid, ice-cold, stone-cold, bitter, bitter-cold, raw, biting, biting-cold, numbing, gelid, wintry, hibernal, brumal, arctic, glacial, polar, hyperborean or hyperboreal, Siberian
Cold Noun Synonyms: head or chest or common cold, influenza, ague, (la or the) grippe, coryza, gravedo, sniffles, the flu, bug, sneezles and wheezles
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Other Words for Wave

Wave Adjective Synonyms: swell, undulation, billow, sea, heave, roller, whitecap, white horse, ripple, wavelet, breaker, comber
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Shallow Water Wave

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

Seismic Surface Wave

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

S-Wave

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

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