Definition

A large cloud of gas and dust in space that is starting to develop into a galaxy.

Example

Astronomers study protogalaxies to understand how galaxies form and evolve over time.

Conversation

Did you know that scientists believe every galaxy starts as a protogalaxy?

Really? I had no idea that was how they formed.

Yeah, it's fascinating how a cloud of gas can eventually become a galaxy.

That makes me want to learn more about space and its mysteries!

Synonyms & Antonyms

Root Explanation

Protogalaxy → It is formed from "proto-" (from Greek "protos", meaning first) and "galaxy" (from Greek "galaxias", meaning milky or milky way). The term "protogalaxy" refers to the first stage of galaxy formation, indicating an early or initial galaxy.

Memory Tip

Think of 'proto-' meaning 'first' and 'galaxy' referring to the 'milky way' — a protogalaxy is essentially the first form of a galaxy.

Visually Confused Words