| Answer | Crossword Clue |
|---|---|
| thready | (of a person's pulse) Scarcely perceptible |
| sphygmographs | An instrument that produces a line recording the strength and rate of a person's pulse |
| sphygmograph | An instrument that produces a line recording the strength and rate of a person's pulse |
| polygraph | A machine designed to detect and record changes in physiological characteristics, such as a person's pulse and breathing rates, used esp. as a lie detector |
| polygraphs | A machine designed to detect and record changes in physiological characteristics, such as a person's pulse and breathing rates, used esp. as a lie detector |
