Meaning of BAROMETER in English

BAROMETER

ba ‧ rom ‧ e ‧ ter /bəˈrɒmətə, bəˈrɒmɪtə $ -ˈrɑːmətər/ BrE AmE noun [countable]

[ Date: 1600-1700 ; Language: Greek ; Origin: baros 'weight, pressure' + English -meter ]

1 . an instrument that measures changes in the air pressure and the weather, or that calculates height above sea level

2 . something that shows any changes that are happening in a particular situation:

The skin is an accurate barometer of emotional and physical health.

—barometric /ˌbærəˈmetrɪk◂/ adjective [only before noun]

—barometrically /-kli/ adverb

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.