Snippets

The industry jargon for the two or three lines of descriptive text between the blue title line and the green URL in SERPs is "snippet".

Google derives these snippets from a variety of sources and webmasters cannot dictate what is used. But the marketing advantage of a good opportunity for a telling selling message makes it worthwhile to create the circumstances for "guiding" Google to use what you want it to.

The detailed methods for doing this are in the Education section.