Dictionary entryCEFR B1noun
atom
IPA pronunciation: /ˈætəm/
Listen to the pronunciationRussian meaning
атом
English definition
The smallest unit of a chemical element, consisting of protons, neutrons, and electrons.
Example
Water is made of two hydrogen atoms and one oxygen atom.
Collocations
- atom bomb
- atom structure
- atom nucleus
- split the atom
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