trend(redirected from pernicious trend)
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The direction of an outcrop of a layer, vein, fold, or other kind of geologic feature. Also known as direction.
The general drift, tendency, or bent of a set of statistical data as related to time or another related set of statistical data.
As it pertains to meteorology, it is the forecast for the next two hours. It is added to some METARs (meteorological aeronautical radio).