First Known Use: 1725
Dictionary
tonometer
noun to·nom·e·ter \tō-ˈnä-mə-tər\
Definition of TONOMETER
1
: an instrument or device for determining the exact pitch or the vibration rate of tones
2
: an instrument for measuring tension or pressure and especially intraocular pressure
— to·nom·e·try \tō-ˈnä-mə-trē\ noun
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Origin of TONOMETER
Greek tonos tone + English -meter
Medical Dictionary
tonometer
noun to·nom·e·ter \tō-ˈnäm-ət-ər\
Medical Definition of TONOMETER
: 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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