Now updated for CSW19. New words, if any, and new inflections of existing words, are shown in red.
| alidad | (Arabic) a revolving index on an astrolabe or other instrument for reading gradations. |
| alidade | (Arabic) a revolving index on an astrolabe or other instrument for reading gradations. |
| astrolabe | a compact instrument used to observe and calculate the position of celestial bodies before the invention of the sextant. |
| bascule | (Fr.) an apparatus of which one end rises as the other sinks. |
| binocle | (Fr.) a telescope for use with both eyes at once. |
| ceraunograph | an instrument for recording thunderstorms by detecting the radio waves generated. |
| compass | to go around. |
| cryoscope | an instrument for determining freezing points of substances. |
| eidograph | an instrument for copying drawings. |
| engyscope | (Obs.) a kind of reflecting microscope. |
| episcope | an instrument for projecting images of opaque objects. |
| gyrostat | a modification of the gyroscope. |
| gyrostatic | of or pertaining to the gyrostat or to gyrostatics. |
| gyrostatically | (Adv.) GYROSTATIC, of or pertaining to the gyrostat or to gyrostatics. |
| hodoscope | an instrument for tracing paths of ionizing particles. |
| megascope | an instrument for projecting an enlarged image. |
| microtome | an instrument used to cut very small sections of something. |
| microtomical | of or like a microtome. |
| microtomy | the art of using the microtome. |
| opeidoscope | an instrument for illustrating sound by means of light. |
| poroscope | an instrument for investigating porosity. |
| poroscopic | relating to a poroscope, an instrument for investigating porosity. |
| poroscopy | the use of a poroscope, an instrument for investigating porosity. |
| rheoscope | an instrument for detecting the existence of an electric current. |
| stroboscope | an instrument for studying motion using flashes of light. |
| stroboscopical | of or like a stroboscope, an instrument for studying motion using flashes of light. |
| thermobalance | an analytical balance that measures weight changes when matter is heated. |