godan verb (-tsu), intransitive verb
become grainy; form grains
Describes a substance or surface developing a granular texture, often used for food, paint, or skin. Intransitive.
砂糖が湿気で粒立ってしまった。
The sugar became grainy from the humidity.
この塗料は乾くと粒立つことがある。
This paint can become grainy when it dries.