subatomic
Pronunciation
Adjective
B1 Intermediate
Quick answer
Smaller than or existing within an atom, such as protons, neutrons, and electrons.
Test yourself
Which word fits the gap? "Physicists use huge machines to study the behavior of _____ particles."
Answer: subatomic
In your own words, what does "subatomic" mean?
Smaller than or existing within an atom, such as protons, neutrons, and electrons.
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