| ACTINOMETER | • actinometer n. (Physics) A device used to measure the heating power of electromagnetic radiation, especially that of solar radiation. • ACTINOMETER n. an instrument for measuring incident radiation. |
| AUXANOMETER | • auxanometer n. An instrument to measure the growth of plants. • AUXANOMETER n. an instrument for measuring growth of plants. |
| CAPNOMETERS | • capnometers n. Plural of capnometer. |
| CHRONOMETER | • chronometer n. A device for measuring time, such as a watch or clock. • CHRONOMETER n. an instrument for measuring time. |
| CLINOMETERS | • clinometers n. Plural of clinometer. • CLINOMETER n. an instrument for measuring the incline (slope) of a surface. |
| CYANOMETERS | • cyanometers n. Plural of cyanometer. • CYANOMETER n. instrument for measuring blueness of the sky or ocean. |
| ECONOMETERS | • ECONOMETER n. a device in a car that informs the driver of how much fuel they are consuming. |
| ICONOMETERS | • iconometers n. Plural of iconometer. • ICONOMETER n. an instrument for finding the size of an object by measuring its image. |
| PHONOMETERS | • phonometers n. Plural of phonometer. • PHONOMETER n. an instrument for measuring sound levels, also PHONMETER. |
| PLANOMETERS | • planometers n. Plural of planometer. • PLANOMETER n. an instrument for gauging or testing the flatness of a plane surface. |
| PYCNOMETERS | • pycnometers n. Plural of pycnometer. • PYCNOMETER n. an instrument for measuring specific gravity or density, also PYKNOMETER. |
| PYKNOMETERS | • pyknometers n. Plural of pyknometer. • PYKNOMETER n. an instrument for measuring specific gravity or density, also PYCNOMETER. |
| PYRANOMETER | • pyranometer n. An actinometer used to measure solar radiation incident on a surface. • PYRANOMETER n. another name for a solarimeter. |
| SALINOMETER | • salinometer n. A salimeter. • SALINOMETER n. an instrument for measuring the amount of salt present in any given solution, also SALIMETER, SALOMETER. |
| URINOMETERS | • urinometers n. Plural of urinometer. • URINOMETER n. an instrument for measuring the specific gravity of urine. |