-meter — measuring device, measure (affix)

perimeter C2

/pəˈɹɪmətɚ/ the total length of the boundary of a two-dimensional shape M S

diameter B1

/daɪˈæmɪdɚ/ A straight line passing through the centre of a circle from one side to the other. M S

thermometer B2

/θɚˈmɒmɪtɚ/ An instrument used to measure temperature. M S

barometer B2

/bəˈɹɑ.mə.tɚ/ An instrument that measures air pressure to help predict the weather. M S

speedometer B2

/spɪˈdɑː.mə.t̬ɚ/ an instrument in a vehicle that measures and displays its current speed M S