Example Sentences
"All matter is made of atoms."
"An atom is so tiny that millions would fit on the period at the end of this sentence."
Synonyms & Related Terms
Quick Check
Which best describes the meaning of atom?
Study Tips
To remember atom, try writing it in a sentence of your own. Connect it to something you already know about science.
Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.