Definition

Relating to the earliest known rocks and geological time period before the appearance of life on Earth.

Example

The archaeans are important for understanding the history of our planet.

Conversation

Did you know that some of the oldest rocks are classified as archaean?

Really? I never heard that before, what makes them special?

They formed during a time when Earth was very different, before any life existed.

That's fascinating! I love learning about geology and ancient history.

Synonyms & Antonyms

Root Explanation

Archaeon is derived from the Greek word "archaios" (meaning ancient) and the suffix "-ean" (indicating belonging to or relating to). The term "archaean" refers to something that is ancient, particularly in the context of early life forms on Earth.

Memory Tip

Think of 'ancient' ('archaios') to remember that 'archaean' relates to something very old, especially in terms of early life.

Visually Confused Words