penetrometer
/ˌpɛnɪˈtrɑmɪtər/
noun
- An instrument used to measure the hardness or penetrability of a material, such as soil, snow, or food.
- The chef used a penetrometer to check the tenderness of the cheese.
- The geologist used a penetrometer to test the compactness of the soil at the construction site.
- A penetrometer can help determine how easily a seed can push through the ground.