| Answer | Crossword Clue |
|---|---|
| radiometer | An instrument for detecting or measuring the intensity or force of radiation |
| radiometers | An instrument for detecting or measuring the intensity or force of radiation |
| penetrometer | An instrument for determining the consistency or hardness of a substance by measuring the depth or rate of penetration of a rod or needle driven into it by a known force |
| penetrometers | An instrument for determining the consistency or hardness of a substance by measuring the depth or rate of penetration of a rod or needle driven into it by a known force |
| actinometer | An instrument for measuring the intensity of radiation, typically ultraviolet radiation |
| actinometers | An instrument for measuring the intensity of radiation, typically ultraviolet radiation |
