Definition

An instrument that measures changes in magnetic fields or indicates the rate of climb in aircraft.

Example

The pilot checked the variometer to ensure a safe ascent during the flight.

Conversation

Have you ever seen a variometer in action?

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

It's actually pretty cool; it measures the rate of climb in aircraft.

That sounds interesting! I'd love to learn more about how it works.

Synonyms & Antonyms

Root Explanation

Variometer → It is formed from "vari-" (from Latin "varius", meaning varied or different) and "-meter" (from Greek "metron", meaning measure). The word "variometer" refers to an instrument that measures variations, particularly in altitude or other parameters.

Memory Tip

Think of 'vari-' meaning varied and 'meter' meaning measure — a variometer is a device that measures variations.

Visually Confused Words