-meter / -metry
measure, instrument for measuring
Greek · -metron (-μέτρον)
From Greek metron, measure. -meter names an instrument that measures: thermometer (heat), speedometer (speed). -metry names the science of measuring, like geometry and symmetry.
Memory trick
-meter is a ruler: it measures whatever the first part names.
Words from this root
- thermometer (thermo + meter) — an instrument that measures heatतापमापी, थर्मामीटर
- barometer (baro + meter) — an instrument that measures air pressureवायुदाबमापी
- speedometer (speedo + meter) — an instrument that measures speedगतिमापी, स्पीडोमीटर
- kilometre (kilo + metre) — a thousand metresकिलोमीटर
- diameter (dia + meter) — a line measured across a circleव्यास
- perimeter (peri + meter) — the distance around a shapeपरिमाप
- geometry (geo + metry) — the science of shapes and measuresज्यामिति
- symmetry (sym + metry) — balanced measure on both sidesसमरूपता
- altimeter (alti + meter) — an instrument that measures heightऊँचाईमापी
- voltmeter (volt + meter) — an instrument that measures voltageवोल्टमीटर
- odometer (odo + meter) — an instrument that records distance travelledदूरीमापी
- trigonometry (trigono + metry) — the measuring of trianglesत्रिकोणमिति