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Science · Grades 3–4

Cell

noun

The smallest unit of life that can carry out basic life functions.

Example Sentences

"Your body is made of trillions of cells."

"Plant cells have a rigid cell wall that animal cells lack."

Synonyms & Related Terms

unit of life

Quick Check

Which best describes the meaning of cell?

Study Tips

To remember cell, 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.