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English definition of “barometer”

barometer

noun [C]     /bəˈrɒm.ɪ.tər/ US  /-ˈrɑː.mɪ.t̬ɚ/
a device that measures air pressure and shows when the weather is likely to change Weather and climate - general words something that can show how a particular situation is developing , or how people's opinions on a particular matter are changing : This survey is considered to be a reliable barometer of public opinion .Showing and demonstrating
(Definition of barometer noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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