designed to help correct or ameliorate the discomfort of disorders of the spine and joints: orthopaedic mattresses Collins English Dictionary - Complete & Unabridged 2012 Digital Edition Â© William Collins Sons & Co. Ltd. 1979, 1986 Â© HarperCollins
Definition of Immelmann. : a maneuver in which an airplane reverses direction by executing half of a loop upwards followed by half of a roll âcalled also Immelmann turn.
How to Perform the Heimlich Maneuver. If someone is choking, it's important you know what to do to help. The Heimlich maneuver (abdominal thrusts) is an emergency response technique that can save a life in seconds. It is a simple action...