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.
Heimlich maneuver. n. An emergency technique used to eject an object, such as food, from the trachea of a choking person. The technique employs a firm upward thrust just below the rib cage to force air from the lungs up through the trachea, thus dislodging the obstruction. technique for removing a foreign body, such as a food bolus, from the throat, trachea, or pharynx of a choking victim, where it is preventing air flow to and from the lungs. Synonym: abdominal thrust maneuver. The Heimlich maneuver should not be performed unless complete airway obstruction is present.