Definition: The word 'lockheed martin' refers to a British defence company that produces various military aircraft and missiles. The company's products are used by governments and militaries around the world.<0x0A><0x0A>The word 'lockheed martin' is not specific to any particular aircraft or missile, but it is commonly used to describe the company itself, as well as its products. Its history dates back to the Second World War when the company was founded as a defence contractor for the Royal Air Force. It has since expanded into other fields such as commercial aviation and satellite systems.<0x0A><0x0A>In terms of detailed definition, 'lockheed martin' is a trade name of Lockheed Martin Aeronautics Company, which is a division of Lockheed Martin Corporation. The company provides a range of defence-related products and services to governments, militaries, and private organizations worldwide. It has a long history of designing and manufacturing aircraft and missiles for military use.