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.
Until a man named Henry Heimlich came along with a big idea. Since then, thousands and thousands -- maybe even millions -- have been rescued by the Heimlich maneuver. Yet the story of the man who invented it may not have such a happy ending.