Seiche meaning

sāsh, sēch
A wave that oscillates in lakes, bays, or gulfs from a few minutes to a few hours as a result of seismic or atmospheric disturbances.
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A natural, standing wave in the water of a lake, bay, etc., caused by changes in atmospheric pressure, seismic disturbances, winds, waves, tides, etc.: it continues after the generating force stops.
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An oscillating wave in an enclosed body of water. A seiche may have a period from a few minutes to a few hours and is usually a result of seismic or atmospheric disturbances.
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(hydrology) A short-period standing wave oscillation of the water level in a lake, characteristic of its geometry.
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Origin of seiche

  • French dialectal exposed lake bottom probably from French sèche feminine of sec dry sec1
    From American Heritage Dictionary of the English Language, 5th Edition
  • From Swiss French seiche, perhaps from German Seiche (“sinking”).
    From Wiktionary