Definition from Wiktionary, the free dictionary
From French bureaucrate.
bureaucrat (plural bureaucrats)
Usage notes 
- (an official): The term bureaucrat, while often used in a professional and respectful manner, is oftentimes disdained by those who work in organizations, especially governmental organizations. This is due to connotations of rigidity, indifference, and especially laziness that the term can sometimes connote (the latter especially reflected in the oft-repeated derisive term lazy bureaucrat). As a result, many workers in organizations, especially governmental organizations, prefer terms such as manager, public manager, public servant, public official, etc.
Related terms 
An official in a bureaucracy