Definition

Relating to the period before atomic energy or weapons were developed or used.

Example

The preatomic era was marked by different scientific advancements that did not involve nuclear technology.

Conversation

I was reading about the preatomic era and it sounded fascinating.

Really? What did you find interesting about it?

I learned how different life was before atomic energy changed everything.

That’s true; it’s amazing to think about how much has evolved since then.

Synonyms & Antonyms

Root Explanation

Preatomic → It is formed from "pre-" (meaning before) and "atomic" (from Greek "atomos", meaning indivisible). The word "preatomic" refers to the period or state that existed before the atomic age or before the understanding of atomic structure.

Memory Tip

Think of 'pre-' meaning 'before' and 'atomic' referring to the 'indivisible' particles that make up matter. This helps you remember that 'preatomic' relates to the time before the discovery of atomic theory.

Visually Confused Words