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dilute (verb) to make thin by mixing water; to make weaker or lessen effect.
When you dilute an acid you make it weaker by adding water to it. When you thin down milk by mixing it with water, you dilute it. When the quality of a thing is reduced or made less effective, it is diluted. An exercise is diluted, if it is made less rigorous. The efficiency of an organization is diluted if it is made less efficient.
- Diluted acids are less reactive than concentrated acids. The water added to them weakens them.
- Mass production while making goods cheaper, dilutes their quality and makes them defective in some cases.