Rice is a staple food that originated in Asia and has become popular worldwide. It refers to the edible seeds of several species of grasses, primarily Oryza sativa and Oryza glaberrima, which are grown for their grain. Rice can be cooked and served as a warm dish or used as an ingredient in various recipes such as pilafs, rice bowls, and desserts. It is also used to make products like rice noodles, rice paper, and rice vinegar.