Meaning of BAROMETER in English

BAROMETER

[noun] [C] - a device that measures air pressure and shows when the weather is likely to changeThe arrow on the barometer was pointing to 'Stormy'.(figurative) This survey is considered to be a reliable barometer of public opinion (= a good way of showing what people think).See picture: Meters and gauges

Cambridge English vocab.      Кембриджский английский словарь.