tonometer /tō-nomˈə-tər/

1. A device for determining the frequencies of tones, esp one consisting of tuning forks (music)
2. An instrument for measuring fluid pressure (eg within the eyeball), blood pressure or vapour pressure

tonomˈetry noun

• day-sights
• daysman
• daysmen
• Days of Awe
• days off
• days of grace
• days of yore
• days out
• dayspring
• daysprings
• daystar
• daystars
• day surgery
• daytal
• daytale
• daytaler
• daytalers
• daytales
• daytime
• daytimes
• day-to-day
• day trader
• day traders
• day trading
• day trip