Ever want to know the definition of a word, search for it in Google, and end up on a Wikipedia or dictionary.com page? That might be over. A new enhancement to Google search now identifies queries that are likely to represent the user's desire for a definition, and returns that information as the first result. The net effect is that I've got one less reason to click off of Google, and one more reason to appreciate the search giant for understanding what I want as a user.