Definition

The outer boundary of the region around a planet where its magnetic field dominates the solar wind.

Example

The magnetopause acts as a shield, protecting the planet from solar radiation.

Conversation

Did you know that the magnetopause is the boundary of the magnetosphere?

Really? I had no idea it had a specific name.

Yeah, it protects us from solar winds and cosmic rays.

That's fascinating! I love learning about space.

Synonyms & Antonyms

Root Explanation

Magnetopause → It is formed from "magnet" (from Greek "magnetis lithos", meaning magnetic stone) and "pause" (from Latin "pausa", meaning a stop or break). The word "magnetopause" refers to the boundary region where the Earth's magnetic field stops the solar wind, creating a 'pause' in the magnetic influence.

Memory Tip

Think of a 'magnetic stone' ('magnet') that creates a 'pause' or boundary against solar winds — that's what magnetopause means.

Visually Confused Words