Definition

This term describes a substance that cannot undergo fission, which is the process of splitting an atomic nucleus to release energy.

Example

Certain isotopes are considered nonfissionable and cannot be used in nuclear reactors.

Conversation

Did you know that some materials are nonfissionable?

Really? I thought everything could undergo fission.

Nope, there are definitely things that are nonfissionable, like certain isotopes.

That’s interesting! I guess it’s important to know for nuclear science.

Synonyms & Antonyms

Root Explanation

Nonfissionable → It is formed from "non-" (meaning not) and "fission" (from Latin "fissio", meaning to split). The word "nonfissionable" describes a substance that cannot be split or does not undergo fission.

Memory Tip

Think of 'not' ('non-') being combined with 'splitting' ('fission') to remember that 'nonfissionable' means something that cannot be split.

Visually Confused Words