semiautomatic

semiautomatic 1. Partly automatic; an operation that is partly automatic and partly manual. 2. A reference to a firearm (rifle, pistol, etc.), automatically ejecting the cartridge case (spent shell) of a fired shot and loading the next cartridge from the magazine but requiring a squeeze of the trigger to fire each individual shot.
Found on http://www.wordinfo.info/words/index/info/view_unit/1932/
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