A tiny rice-shaped pasta. The word orzo means barley in Italian. Usually available in Italian grocery stores and large supermarkets, orzo can be used in soups and casseroles or as a side dish in place of rice.
Orzo (from Latin hordeum) is Italian and means "barley," but in common usage in the United States, orzo is understood to mean rice-shaped pasta, slightly smaller than a pine nut. It is frequently used in soups.