anemometer

noun
🔊/ˌænɪˈmɒmɪtə(r)/
🔊/ˌænɪˈmɑːmɪtər/
(also wind gauge)
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  1. an instrument for measuring the speed of the wind or of a current of gas风速计;风速表Topics Weatherc2
    Word Originearly 18th cent.: from Greek anemos ‘wind’ + -meter (see meter).