Definition

Able to be split into smaller parts, especially in the context of nuclear reactions where certain materials can undergo fission.

Example

Uranium-235 is a fissionable material used in nuclear reactors.

Conversation

Did you know that some materials are fissionable?

Really? What does that mean exactly?

It means they can undergo fission, which is used in nuclear reactors.

That sounds pretty interesting! I had no idea materials could do that.

Synonyms & Antonyms

Root Explanation

Fissionable → It is formed from "fission" (from Latin "fissio", meaning a splitting or cleaving) and the suffix "-able" (meaning capable of). The word "fissionable" means capable of undergoing fission or splitting apart.

Memory Tip

Think of 'fission' as a process of 'splitting' and '-able' meaning 'capable of' — so fissionable refers to something that can split apart.

Visually Confused Words