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.
You can even perform the maneuver on yourself. Henry Heimlich first published the idea of this maneuver in the journal of Emergency Medicine in 1974. He was a thoracic surgeon and his medical work led to a number of additional inventions that have helped patients in the medical field.