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n. Alternative spelling of dew point.

"(The word "dewpoint" arose from the observation that dew forms on grass when the grass cools, by radiation to the sky, to a temperature equal to or less than the wetbulb temperature of the air above it.)"

saturation point    temperature   

depression of the dewpoint    complement of the dew-point    trouton's electrical dew-point hygrometer    dew-point apparatus