淀粉 (diàn fěn): starch; amylum (C6H10O5)n

Potatoes, corn, and sweet potatoes all contain a lot of starch, so they are often used to make starch noodles.

When making sweet and sour spare ribs, first coat the meat pieces with a layer of starch, then fry them in oil; this way the outer layer will be crispier.

The doctor advised me to eat less refined starch, such as white bread and cake, and to eat more whole grains and vegetables.

Starch stains on clothes are hard to wash out; it's best to soak them in warm water first, then gently rub them.

In the lab, we use iodine solution to test whether food contains starch; if it turns blue, that means it does.