tendency

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tendency

Politics a faction, esp one within a political party
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

tendency

[′ten·dən·sē]
(meteorology)
The local rate of change of a vector or scalar quality with time at a given point in space.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

tendency

tendency
tendencyclick for a larger image
As it pertains to meteorology, the variation of any parameter with respect to time, especially atmospheric pressure within the last three hours.
The barometric tendency (i.e., the change of barometric pressure in the last three hours) is shown on the right of the station plot on a synoptic chart or on the remarks section of a METAR (meteorological aeronautical radio code) observation. The illustration depicts the barometric tendency and its legend.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved