油脂

1. Origins, structure, and basic meaning

• Structure: Spelling: 油脂. Reading: ゆし. Core meaning: oils and fats.
• Basic usage: Representative examples: 食品に含まれる油脂の量を表示で確かめた / 換気扇に付いた油脂を専用の洗剤で落とす.

2. Common pitfalls and similar expressions

• Collective term for oils and fats
  • 油脂 is a collective term for oils and fats in food, ingredient, and residue contexts. Do not narrow it to liquid oil alone.