Definition

A tool used to measure how easily something can be penetrated, often used for testing the firmness of materials like soil or the strength of radiation.

Example

The engineer used a penetrometer to assess the soil's stability before construction.

Conversation

Have you ever used a penetrometer for your soil tests?

No, I haven't. What does it do?

It's pretty cool; it measures how firm the soil is.

That sounds useful for gardening or construction projects!

Synonyms & Antonyms

Root Explanation

Penetrometer → It is formed from "penetrare" (meaning to penetrate) and "-meter" (meaning measure). The word describes an instrument that measures the penetration of a material.

Memory Tip

Think of 'penetrating' into something to measure it — 'penetrare' means to penetrate, and '-meter' indicates a measuring device.

Visually Confused Words