mercury barometer mercury-arc rectifier • mercury boiler · · · Info · Definitions · Characters · · mercury barometer · · Text Common · · Latin · · Scripts 17 · · Length 7 · · Syllables Definitions · · · (noun) barometer that shows pressure by the height of a column of mercury. Synonyms: mercury barometer. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079