tonometer

noun to·nom·e·ter \tō-ˈnä-mə-tər\

Definition of TONOMETER

: an instrument or device for determining the exact pitch or the vibration rate of tones

: an instrument for measuring tension or pressure and especially intraocular pressure

— to·nom·e·try \tō-ˈnä-mə-trē\ noun

Greek tonos tone + English -meter

First Known Use: 1725

Medical Dictionary

noun to·nom·e·ter \tō-ˈnäm-ət-ər\

: an instrument for measuring tension or pressure and especially intraocular pressure

—to·no·met·ric \ˈtō-nə-ˈme-trik, ˌtän-ə-\ adjective

—to·nom·e·try \tō-ˈnäm-ə-trē\ noun, plural to·nom·e·tries

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