1 instrument that measures air pressure
ADJ. aneroid, digital | high, low | steady The barometer has been steady for three days now.
VERB + BAROMETER check, read | tap He tapped the barometer and noted where the needle was pointing.
BAROMETER + VERB rise | drop, fall
2 sth that shows the state of sth
ADJ. accurate, good, reliable, sensitive, useful Infant mortality is a highly sensitive barometer of socio-economic conditions. | political
PREP. ~ of