fats and oils; oil and fat
Technical and general term covering both solid fats and liquid oils, often used in food science, chemistry, and nutrition contexts.
This food contains a lot of fats and oils.
Fats and oils are not easily soluble in water.
This snack contains a lot of fats and oils.
The doctor told me to reduce my intake of fats and oils.
Vegetable fats and oils are used in this bread.
脂質 is the biochemistry term for lipids as a class of molecules, while 油脂 is the more general term for fats and oils as everyday substances.
油脂 is a technical umbrella term covering both solid fats and liquid oils together, while 脂 specifically means solid or semi-solid animal fat.
油脂 (fats and oils) and 樹脂 (resin) sound similar and both end in 脂, but they refer to completely different substances.
Compound of 油 (oil) and 脂 (fat), directly reflecting the combined meaning of fats and oils.