Elaborate the abbreviation "OP"

Explanation

**Step-by-Step Text Solution:**

1. **Understanding the Abbreviation:**
- The abbreviation "OP" stands for "osmotic pressure."

2. **Link to Osmosis:**
- Osmotic pressure is closely related to the process of osmosis. Osmosis is defined as the movement of solvent molecules (like water) from an area of higher concentration to an area of lower concentration through a semi-permeable membrane.

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