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Science · Grades 5–6

Osmosis

noun

The movement of water through a semipermeable membrane from a less concentrated to a more concentrated solution.

Example Sentences

"Plant roots absorb water from soil through osmosis."

"A cell placed in saltwater will shrink due to osmosis."

Synonyms & Related Terms

water diffusion

Quick Check

Which best describes the meaning of osmosis?

Study Tips

To remember osmosis, 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.