| AEROMETERS | • aerometers n. Plural of aerometer. • AEROMETER n. an instrument for measuring the weight or density of gas. |
| BAROMETERS | • barometers n. Plural of barometer. • BAROMETER n. an instrument for measuring atmospheric pressure. |
| DUROMETERS | • durometers n. Plural of durometer. • DUROMETER n. an instrument for measuring the hardness of substances. |
| HYDROMETER | • hydrometer n. An instrument that floats in a liquid and measures its specific gravity on a scale. • HYDROMETER n. an instrument for measuring the specific gravity of liquids. |
| HYGROMETER | • hygrometer n. (Meteorology) An instrument that measures the humidity of the air or other gases, especially the relative humidity. • HYGROMETER n. an instrument for measuring air moisture. |
| MICROMETER | • micrometer n. A device used to measure distance very precisely but within a limited range, especially depth, thickness… • micrometer n. US spelling of micrometre. • MICROMETER n. an instrument for measuring very small distances. |
| NITROMETER | • nitrometer n. (Chemistry) An apparatus for determining the amount of nitrogen or some of its compounds in a substance. • NITROMETER n. an instrument for measuring nitrogen and its compounds. |
| OMBROMETER | • ombrometer n. An instrument for measuring rainfall. • OMBROMETER n. a rain-gauge. |
| PYROMETERS | • pyrometers n. Plural of pyrometer. • PYROMETER n. an instrument for measuring very high temperatures. |
| SPIROMETER | • spirometer n. (Medicine) An instrument for measuring the air capacity of the lungs. • SPIROMETER n. an instrument measuring lung capacity. |
| VIBROMETER | • vibrometer n. Any of several engineering devices that measure the characteristics of a vibrating structure. • VIBROMETER n. an instrument for measuring vibrations. |