肥満

1. Origins, structure, and basic meaning

• Structure: 肥満 is read as ひまん and is a noun for obesity, a physical condition involving excessive body fat.
• Basic usage: Concern about the condition appears in 肥満を気にする, while its relation to habits appears in 肥満と生活習慣.

2. Common pitfalls and similar expressions

• A noun for a condition
  • Rather than casually describing appearance, it identifies a physical condition discussed in health and educational contexts.
• Difference from 太る
  • 太る is a verb for gaining weight or becoming larger, whereas 肥満 names the state or concept of obesity.