adj

subatomic

suh-buh-TO-mihk

adj

Smaller than an atom, or relating to the particles — like protons, neutrons, and electrons — that make up an atom.

"Physicists study subatomic particles to understand what matter is really made of."

"The collider smashes protons together to reveal subatomic structure."

How to Use Subatomic

Learner’s notes

In plain EnglishDescribes anything at a scale smaller than a whole atom.

Common pairings

subatomic particle subatomic physics subatomic level

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Physicists study _____ particles to understand what matter is really made of.

Built from sub- ("below, under") plus atomic — literally "smaller than the atom."

comic atomic economic