凝固

1. Origins, structure, and basic meaning

• Structure: 凝固, read ぎょうこ, denotes a fluid substance solidifying or coagulating.
• Basic usage: It can describe fat with 凝固する or name the process measured in 凝固にかかる時間 for blood.

2. Common pitfalls and similar expressions

• Solidifying or coagulating
  • It applies both to fat solidifying as it cools and to blood coagulating. The focus is the change from a fluid state, not simply the name of the resulting material.