Definition

Referring to something that is situated or comes from outside of our galaxy, the Milky Way.

Example

Astronomers study extragalactic objects to learn more about the universe beyond our own galaxy.

Conversation

Did you hear about that new telescope they're using to study extragalactic objects?

Yeah, I read that it can see galaxies far beyond our own!

It's amazing how much we can learn about the universe's history through extragalactic research.

Absolutely! I can't wait to see what discoveries they make next.

Synonyms & Antonyms

Root Explanation

Extragalactic is formed from "extra-" (meaning outside) and "galactic" (from the Greek "galaxias", meaning milky, referring to the Milky Way galaxy). The word describes something that is located outside of our galaxy.

Memory Tip

Think of 'extra-' meaning 'outside' and 'galactic' relating to the galaxy — so extragalactic refers to things that are outside of our galaxy.

Visually Confused Words