Treatments for gum disease vary from medication to surgery. Learn more about the options.
(plural maiden flights) The first flight of an airplane or other airborne vehicle, usually used to test or demonstrate the functions of the systems. The manufacturer's CEO was confident enough to ride as a passenger on the airship's maiden flight.
First-class air travel. The definition of first-class is of the highest or best. An example of something first-class are the most comfortable and luxurious seats on a plane; first-class seats. First-class is defined as done in the most lavish or stylish way.