| Answer | Crossword Clue |
|---|---|
| effusiometer | an instrument for comparing the molecular weights of gases |
| effusiometers | EFFUSIOMETER, an instrument for comparing the molecular weights of gases |
| absorptiometer | an instrument for measuring the solubility of gases in liquids |
| absorptiometers | ABSORPTIOMETER, an instrument for measuring the solubility of gases in liquids |
| monochord | An instrument for comparing musical pitches mathematically, using a taut wire whose vibrating length can be adjusted with a movable bridge |
| monochords | An instrument for comparing musical pitches mathematically, using a taut wire whose vibrating length can be adjusted with a movable bridge |
