Definition: The word "arugula" comes from Greek, meaning "green parsley," used in Italian cooking to flavor salads or other dishes. The term is derived from the Latin word arugula. It's a small green vegetable that grows in various varieties, including arugula, spinach, and more. The exact definition of arugula is not universally understood as it varies with region and culture, but generally refers to a type of parsley known for its bright green color and crisp texture.