noun Meteorology.
any instrument for measuring the speed of wind.

1720–30; anemo- + -meter

anemometric [an-uh-moh-me-trik] , anemometrical, adjective
anemometrically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
anemometer (ˌænɪˈmɒmɪtə)
1.  Also called: wind gauge an instrument for recording the speed and often the direction of winds
2.  any instrument that measures the rate of movement of a fluid

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

c.1740, from Gk. anemos "wind" (cognate with L. anima "breath of air;" see animus) + ending as in barometer.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
anemometer   (ān'ə-mŏm'ĭ-tər)  Pronunciation Key 
An instrument that measures the speed of the wind or of another flowing fluid. The most basic type of anemometer consists of a series of cups mounted at the end of arms that rotate in the wind. The speed with which the cups rotate indicates the wind speed. In this form, the anemometer also indicates the direction of the wind. ◇ Other anemometers include the pressure-tube anemometer, which uses the pressure generated by the wind to measure its speed, and the hot-wire anemometer, which uses the rate at which heat from a hot wire is transferred to the surrounding air to measure wind speed.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The anemometer at the bottom is still, but the ones higher up are turning slowly.
Both the wind vane and the cup anemometer are mounted on vertical poles that
There's some instrumentation on the launch ramp, as well as an anemometer, with
  the data lines running into a laptop computer.
With a slightly different anemometer, the whole family got into the car.
Images for anemometer
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