Main Entry:

ba·rom·e·ter

Pronunciation:

\bə-ˈrä-mə-tər\

Function:

noun

Date:

circa 1666

1 : an instrument for determining the pressure of the atmosphere and hence for assisting in forecasting weather and for determining altitude 2 : something that indicates fluctuations (as in public opinion) <housing sales and other economic barometers> 3 : standard, test <a barometer to measure high school talent — Jeff Fellenzer>

— baro·met·ric \ˌber-ə-ˈme-trik, ˌba-rə-\ adjective

— baro·met·ri·cal·ly \-tri-k(ə-)lē\ adverb

— ba·rom·e·try \bə-ˈrä-mə-trē\ noun