What does Rich snippet mean?

A Rich Snippet is an enhanced form of a search engine result that, in addition to the usual page title, URL and description, can display further information, such as product price, availability, rating, number of reviews, an image or recipe or event details. These enhanced elements are based on structured data on the web page, which helps search engines better understand its content. Google now more often uses the term “rich result”. Correctly implemented structured data can make a result more visually prominent and help users get important information faster, but its display is not automatically guaranteed.