| Answer | Crossword Clue |
|---|---|
| penetrometers | PENETROMETER, an instrument for measuring the firmness or consistency of substances |
| penetrometer | an instrument for measuring the firmness or consistency of substances |
| 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 |
| durometer | an instrument for measuring the hardness of substances |
| durometers | DUROMETER, an instrument for measuring the hardness of substances |
