Why are carboxylic acids called fatty acids?

Explanation

### Step-by-Step Solution:

1. **Definition of Carboxylic Acids**:
- Carboxylic acids are organic compounds that contain a carboxyl group (-COOH). They are known for their acidic properties.

2. **Understanding Fatty Acids**:
- Fatty acids are a specific type of carboxylic acid that have long hydrocarbon chains. They can be saturated (no double bonds) or unsaturated (one or more double bonds).

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