A snippet is a text excerpt that appears below a page's title in our search results and describes the content of the page.
To prevent Google from displaying snippets for your page, place this tag in the <HEAD> section of your page:
<meta name="googlebot" content="nosnippet">
Note: Removing snippets also removes cached pages.
If you want to your page to have a snippet in our search results, but want to prevent Google from using description information from the Open Directory Project, you can use the robots META tag.