A meta description is a brief summary or snippet that describes the content of a webpage. It typically appears below the title tag in search engine results pages (SERPs) and provides users with a concise preview of what they can expect if they click on the link. It’s important for SEO purposes as it can influence a user’s decision to click through to your website. A well-crafted meta description should be informative, relevant, and enticing, encouraging users to engage with your content.