- an instrument for measuring the pitch of a sound, esp one consisting of a set of tuning forks
- any of various types of instrument for measuring pressure or tension, such as the blood pressure, vapour pressure, etc
WordReference Random House Unabridged Dictionary of American English © 2026
to•nom•e•ter
(tō nom′i tər),USA pronunciation n.
ton•o•met•ric
(ton′ə me′trik, tō′nə-)USA pronunciation, adj.
to•nom ′e•try, n.
- an instrument for measuring the frequencies of tones, as a tuning fork or a graduated set of tuning forks.
- any of various physiological instruments for measuring intraocular pressure or blood pressure.
- [Physical Chem.]an instrument for measuring vapor pressure.
- 1715–25; tono- + -meter
Collins Concise English Dictionary © HarperCollins Publishers::
tonometer /təʊˈnɒmɪtə/ n
'tonometer' also found in these entries (note: many are not synonyms or translations):