恒常性

1. Origins, structure, and basic meaning

• Structure: 恒常性 is read as こうじょうせい and is a noun for homeostasis, the capacity of an organism to maintain stable internal conditions despite external change.
• Basic usage: The property of the internal environment appears in 体内環境の恒常性, while maintaining it appears in 恒常性を保つ.

2. Common pitfalls and similar expressions

• Not complete absence of change
  • It does not mean that nothing changes; it is the biological regulation that keeps conditions within a stable range.
• Difference from 安定性
  • Compared with stability in general, this term focuses on regulation that maintains internal biological conditions.