A periodontist is a dentist who specializes in the prevention, diagnosis, and treatment of periodontal disease, and in the placement of dental implants. Periodontists are also experts in the treatment of oral inflammation.
Ground speed. Ground speed is the horizontal speed of an aircraft relative to the ground. An aircraft heading vertically would have a ground speed of zero. Information displayed to passengers through the entertainment system often gives the aircraft ground speed rather than airspeed.
hit the ground running. Seize an opportunity; begin at full speed. For example, As soon as the front office gave its approval for the new department, we hit the ground running.to be ready to work immediately on a new activity His previous experience will allow him to hit the ground running when he takes over the Commerce Department.it the ground running. Seize an opportunity; begin at full speed. For example, As soon as the front office gave its approval for the new department, we hit the ground running.