- Word History, Word Explorer, Word Parts
|part of speech:
||the smallest possible unit of a chemical element. The major parts of atoms contain protons, neutrons, and electrons. They are the basis of all matter in the universe.
||anything extremely small; tiny bit.
There was not an atom of food in the house after they left.
- similar words:
is from an ancient Greek word that means "not able to be cut or divided."