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Meaning of dew point

dew' point"

Pronunciation: [key]
  1. the temperature to which air must be cooled, at a given pressure and water-vapor content, for it to reach saturation; the temperature at which dew begins to form. Also calledCf. absolute humidity, mixing ratio, relative humidity, specific humidity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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